Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / GridViewDesigner.cs / 2 / GridViewDesigner.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.Design.WebControls {
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Data;
using System.Design;
using System.Diagnostics;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Text;
using System.Web.UI.Design;
using System.Web.UI.Design.Util;
using System.Web.UI.WebControls;
using System.Windows.Forms;
using GridView = System.Web.UI.WebControls.GridView;
using GridViewRow = System.Web.UI.WebControls.GridViewRow;
using GridViewRowEventHandler = System.Web.UI.WebControls.GridViewRowEventHandler;
using Table = System.Web.UI.WebControls.Table;
using TableRow = System.Web.UI.WebControls.TableRow;
///
/// GridViewDesigner is the designer associated with a
/// GridView.
///
public class GridViewDesigner : DataBoundControlDesigner {
private static DesignerAutoFormatCollection _autoFormats;
private static string[] _columnTemplateNames = new string[] {
"ItemTemplate",
"AlternatingItemTemplate",
"EditItemTemplate",
"HeaderTemplate",
"FooterTemplate"
};
private static bool[] _columnTemplateSupportsDataBinding = new bool[] {
true,
true,
true,
false,
false
};
private const int IDX_COLUMN_HEADER_TEMPLATE = 3;
private const int IDX_COLUMN_ITEM_TEMPLATE = 0;
private const int IDX_COLUMN_ALTITEM_TEMPLATE = 1;
private const int IDX_COLUMN_EDITITEM_TEMPLATE = 2;
private const int IDX_COLUMN_FOOTER_TEMPLATE = 4;
private const int BASE_INDEX = 1000;
private static string[] _controlTemplateNames = new string[] {
"EmptyDataTemplate",
"PagerTemplate"
};
private static bool[] _controlTemplateSupportsDataBinding = new bool[] {
true,
true
};
private const int IDX_CONTROL_EMPTY_DATA_TEMPLATE = 0;
private const int IDX_CONTROL_PAGER_TEMPLATE = 1;
private GridViewActionList _actionLists;
private int _regionCount;
private bool _currentEditState;
private bool _currentDeleteState;
private bool _currentSelectState;
private enum ManipulationMode {
Edit,
Delete,
Select
}
internal bool _ignoreSchemaRefreshedEvent;
///
/// Adds designer actions to the ActionLists collection.
///
public override DesignerActionListCollection ActionLists {
get {
DesignerActionListCollection actionLists = new DesignerActionListCollection();
actionLists.AddRange(base.ActionLists);
if (_actionLists == null) {
_actionLists = new GridViewActionList(this);
}
bool inTemplateMode = InTemplateMode;
int selectedFieldIndex = SelectedFieldIndex;
UpdateFieldsCurrentState();
_actionLists.AllowRemoveField = (((GridView)Component).Columns.Count > 0 &&
selectedFieldIndex >= 0 &&
!inTemplateMode);
_actionLists.AllowMoveLeft = (((GridView)Component).Columns.Count > 0 &&
selectedFieldIndex > 0 &&
!inTemplateMode);
_actionLists.AllowMoveRight = (((GridView)Component).Columns.Count > 0 &&
selectedFieldIndex >= 0 &&
((GridView)Component).Columns.Count > selectedFieldIndex + 1 &&
!inTemplateMode);
// in the future, these will also look at the DataSourceDesigner to figure out
// if they should be enabled
DesignerDataSourceView view = DesignerView;
_actionLists.AllowPaging = !inTemplateMode && view != null;
_actionLists.AllowSorting = !inTemplateMode && (view != null && view.CanSort);
_actionLists.AllowEditing = !inTemplateMode && (view != null && view.CanUpdate);
_actionLists.AllowDeleting = !inTemplateMode && (view != null && view.CanDelete);
_actionLists.AllowSelection = !inTemplateMode && view != null;
actionLists.Add(_actionLists);
return actionLists;
}
}
public override DesignerAutoFormatCollection AutoFormats {
get {
if (_autoFormats == null) {
_autoFormats = CreateAutoFormats(AutoFormatSchemes.GRIDVIEW_SCHEMES,
delegate(DataRow schemeData) { return new GridViewAutoFormat(schemeData); });
}
return _autoFormats;
}
}
///
/// Called by the action list to enable deleting on the GridView
///
internal bool EnableDeleting {
get {
return _currentDeleteState;
}
set {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(EnableDeletingCallback), value, SR.GetString(SR.GridView_EnableDeletingTransaction));
}
finally {
Cursor.Current = originalCursor;
}
}
}
///
/// Called by the action list to enable editing on the GridView
///
internal bool EnableEditing {
get {
return _currentEditState;
}
set {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(EnableEditingCallback), value, SR.GetString(SR.GridView_EnableEditingTransaction));
}
finally {
Cursor.Current = originalCursor;
}
}
}
///
/// Called by the action list to enable paging on the GridView
///
internal bool EnablePaging {
get {
return ((GridView)Component).AllowPaging;
}
set {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(EnablePagingCallback), value, SR.GetString(SR.GridView_EnablePagingTransaction));
}
finally {
Cursor.Current = originalCursor;
}
}
}
///
/// Called by the action list to enable selection on the GridView
///
internal bool EnableSelection {
get {
return _currentSelectState;
}
set {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(EnableSelectionCallback), value, SR.GetString(SR.GridView_EnableSelectionTransaction));
}
finally {
Cursor.Current = originalCursor;
}
}
}
///
/// Called by the action list to enable sorting on the GridView
///
internal bool EnableSorting {
get {
return ((GridView)Component).AllowSorting;
}
set {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(EnableSortingCallback), value, SR.GetString(SR.GridView_EnableSortingTransaction));
}
finally {
Cursor.Current = originalCursor;
}
}
}
///
/// Used to determine the number of sample rows the control wishes to show.
///
protected override int SampleRowCount{
get {
int sampleRows = 5;
GridView sg = ((GridView)Component);
if (sg.AllowPaging && sg.PageSize != 0) {
sampleRows = Math.Min(sg.PageSize, 100) + 1;
}
return sampleRows;
}
}
///
/// The index of the currently selected clickable field region
///
private int SelectedFieldIndex {
get {
object selectedFieldIndex = DesignerState["SelectedFieldIndex"];
int columnFieldCount = ((GridView)Component).Columns.Count;
if (selectedFieldIndex == null ||
columnFieldCount == 0 ||
(int)selectedFieldIndex < 0 ||
(int)selectedFieldIndex >= columnFieldCount) {
return -1;
}
return (int)selectedFieldIndex;
}
set {
DesignerState["SelectedFieldIndex"] = value;
}
}
///
/// Adds bound fields and data keys using schema after the DataSourceID property is set.
///
private void AddKeysAndBoundFields(IDataSourceViewSchema schema) {
DataControlFieldCollection fields = ((GridView)Component).Columns;
Debug.Assert(schema != null, "Did not expect null schema in AddKeysAndBoundFields");
if (schema != null) {
IDataSourceFieldSchema[] fieldSchemas = schema.GetFields();
if (fieldSchemas != null && fieldSchemas.Length > 0) {
ArrayList keys = new ArrayList();
foreach (IDataSourceFieldSchema fieldSchema in fieldSchemas) {
if (!((GridView)Component).IsBindableType(fieldSchema.DataType)) {
continue;
}
BoundField boundField;
if (fieldSchema.DataType == typeof(bool) ||
fieldSchema.DataType == typeof(bool?)) {
boundField = new CheckBoxField();
}
else {
boundField = new BoundField();
}
string fieldName = fieldSchema.Name;
if (fieldSchema.PrimaryKey) {
keys.Add(fieldName);
}
boundField.DataField = fieldName;
boundField.HeaderText = fieldName;
boundField.SortExpression = fieldName;
boundField.ReadOnly = fieldSchema.PrimaryKey || fieldSchema.IsReadOnly;
boundField.InsertVisible = !fieldSchema.Identity;
fields.Add(boundField);
}
((GridView)Component).AutoGenerateColumns = false;
int keyCount = keys.Count;
if (keyCount > 0) {
string[] dataKeys = new string[keyCount];
keys.CopyTo(dataKeys, 0);
((GridView)Component).DataKeyNames = dataKeys;
}
}
}
}
///
/// Called by the action list to add a new field on the GridView
///
internal void AddNewField() {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
// Ignore schema refreshed events so when the dialogs are dismissed, we won't overwrite the new fields
// with gen'd fields from the new schema.
_ignoreSchemaRefreshedEvent = true;
InvokeTransactedChange(Component, new TransactedChangeCallback(AddNewFieldChangeCallback), null, SR.GetString(SR.GridView_AddNewFieldTransaction));
_ignoreSchemaRefreshedEvent = false;
UpdateDesignTimeHtml();
}
finally {
Cursor.Current = originalCursor;
}
}
///
/// Transacted change callback to invoke the Add New Field dialog.
///
private bool AddNewFieldChangeCallback(object context) {
// We need to suppress changed events so other data bound controls listening to the data source control's
// changed events won't see each schema change and update while there's a modal dialog up.
// This control won't hear it anyways though because it's ignoring schema refreshed events
if (DataSourceDesigner != null) {
DataSourceDesigner.SuppressDataSourceEvents();
}
AddDataControlFieldDialog dlg = new AddDataControlFieldDialog(this);
DialogResult result = UIServiceHelper.ShowDialog(Component.Site, dlg);
if (DataSourceDesigner != null) {
DataSourceDesigner.ResumeDataSourceEvents();
}
return (result == DialogResult.OK);
}
///
/// Raised when the control is databound.
///
protected override void DataBind(BaseDataBoundControl dataBoundControl) {
GridView gridView = (GridView)dataBoundControl;
gridView.RowDataBound += new GridViewRowEventHandler(this.OnRowDataBound);
try {
base.DataBind(dataBoundControl);
}
finally {
gridView.RowDataBound -= new GridViewRowEventHandler(this.OnRowDataBound);
}
}
///
/// Called by the action list to edit fields on the GridView
///
internal void EditFields() {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
// Ignore schema refreshed events so when the dialogs are dismissed, we won't overwrite the new fields
// with gen'd fields from the new schema.
_ignoreSchemaRefreshedEvent = true;
InvokeTransactedChange(Component, new TransactedChangeCallback(EditFieldsChangeCallback), null, SR.GetString(SR.GridView_EditFieldsTransaction));
_ignoreSchemaRefreshedEvent = false;
UpdateDesignTimeHtml();
}
finally {
Cursor.Current = originalCursor;
}
}
///
/// Transacted change callback to invoke the Edit Fields dialog.
///
private bool EditFieldsChangeCallback(object context) {
// We need to suppress changed events so other data bound controls listening to the data source control's
// changed events won't see each schema change and update while there's a modal dialog up.
// This control won't hear it anyways though because it's ignoring schema refreshed events
if (DataSourceDesigner != null) {
DataSourceDesigner.SuppressDataSourceEvents();
}
DataControlFieldsEditor dlg = new DataControlFieldsEditor(this);
DialogResult result = UIServiceHelper.ShowDialog(Component.Site, dlg);
if (DataSourceDesigner != null) {
DataSourceDesigner.ResumeDataSourceEvents();
}
return (result == DialogResult.OK);
}
///
/// Transacted change callback to enable or disable deleting.
///
private bool EnableDeletingCallback(object context) {
bool setEnabled = !_currentDeleteState;
if (context is bool) {
setEnabled = (bool)context;
}
SaveManipulationSetting(ManipulationMode.Delete, setEnabled);
return true;
}
///
/// Transacted change callback to enable or disable editing.
///
private bool EnableEditingCallback(object context) {
bool setEnabled = !_currentEditState;
if (context is bool) {
setEnabled = (bool)context;
}
SaveManipulationSetting(ManipulationMode.Edit, setEnabled);
return true;
}
///
/// Transacted change callback to enable or disable paging.
///
private bool EnablePagingCallback(object context) {
bool currentPageState = ((GridView)Component).AllowPaging;
bool setEnabled = !currentPageState;
if (context is bool) {
setEnabled = (bool)context;
}
PropertyDescriptor propDesc = TypeDescriptor.GetProperties(typeof(GridView))["AllowPaging"];
propDesc.SetValue(Component, setEnabled);
return true;
}
///
/// Transacted change callback to enable or disable sorting.
///
private bool EnableSortingCallback(object context) {
bool currentSortState = ((GridView)Component).AllowSorting;
bool setEnabled = !currentSortState;
if (context is bool) {
setEnabled = (bool)context;
}
PropertyDescriptor propDesc = TypeDescriptor.GetProperties(typeof(GridView))["AllowSorting"];
propDesc.SetValue(Component, setEnabled);
return true;
}
///
/// Transacted change callback to enable or disable selection.
///
private bool EnableSelectionCallback(object context) {
bool setEnabled = !_currentEditState;
if (context is bool) {
setEnabled = (bool)context;
}
SaveManipulationSetting(ManipulationMode.Select, setEnabled);
return true;
}
///
/// Attempts to get schema from the data source. If the schema cannot
/// be retrieved, or there is no schema, then null is returned.
///
private IDataSourceViewSchema GetDataSourceSchema() {
DesignerDataSourceView view = DesignerView;
if (view != null) {
try {
return view.Schema;
}
catch (Exception ex) {
IComponentDesignerDebugService debugService = (IComponentDesignerDebugService)Component.Site.GetService(typeof(IComponentDesignerDebugService));
if (debugService != null) {
debugService.Fail(SR.GetString(SR.DataSource_DebugService_FailedCall, "DesignerDataSourceView.Schema", ex.Message));
}
}
}
return null;
}
///
/// Provides the design-time HTML used to display the control
/// at design-time.
///
///
/// The HTML used to render the control at design-time.
///
public override string GetDesignTimeHtml() {
GridView gridView = (GridView)ViewControl;
IDataSourceDesigner dcd = DataSourceDesigner;
_regionCount = 0;
bool hasSchema = false;
IDataSourceViewSchema schema = GetDataSourceSchema();
if (schema != null) {
IDataSourceFieldSchema[] fieldSchemas = schema.GetFields();
if (fieldSchemas != null && fieldSchemas.Length > 0) {
hasSchema = true;
}
}
if (!hasSchema) {
gridView.DataKeyNames = null;
}
if (gridView.Columns.Count == 0) {
gridView.AutoGenerateColumns = true;
}
// refresh the TypeDescriptor so that PreFilterProperties gets called
TypeDescriptor.Refresh(this.Component);
string html = base.GetDesignTimeHtml();
return html;
}
///
/// Called by the action list to move a field left on the GridView
///
internal void MoveLeft() {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(MoveLeftCallback), null, SR.GetString(SR.GridView_MoveLeftTransaction));
UpdateDesignTimeHtml();
}
finally {
Cursor.Current = originalCursor;
}
}
///
/// Transacted change callback to move a field left.
///
private bool MoveLeftCallback(object context) {
DataControlFieldCollection fields = ((GridView)Component).Columns;
int selectedFieldIndex = SelectedFieldIndex;
if (selectedFieldIndex > 0) {
DataControlField field = fields[selectedFieldIndex];
fields.RemoveAt(selectedFieldIndex);
fields.Insert(selectedFieldIndex - 1, field);
SelectedFieldIndex--;
UpdateDesignTimeHtml();
return true;
}
return false;
}
///
/// Called by the action list to move a field right on the GridView
///
internal void MoveRight() {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(MoveRightCallback), null, SR.GetString(SR.GridView_MoveRightTransaction));
UpdateDesignTimeHtml();
}
finally {
Cursor.Current = originalCursor;
}
}
///
/// Transacted change callback to move a field right.
///
private bool MoveRightCallback(object context) {
DataControlFieldCollection fields = ((GridView)Component).Columns;
int selectedFieldIndex = SelectedFieldIndex;
if (selectedFieldIndex >= 0 && fields.Count > (selectedFieldIndex + 1)) {
DataControlField field = fields[selectedFieldIndex];
fields.RemoveAt(selectedFieldIndex);
fields.Insert(selectedFieldIndex + 1, field);
SelectedFieldIndex++;
UpdateDesignTimeHtml();
return true;
}
return false;
}
///
/// Adds the designer region attributes on all cells when GetDesignTimeHtml is called.
///
private void OnRowDataBound(object sender, System.Web.UI.WebControls.GridViewRowEventArgs e) {
GridViewRow row = e.Row;
if (row.RowType == DataControlRowType.DataRow ||
row.RowType == DataControlRowType.Header ||
row.RowType == DataControlRowType.Footer) {
int columnsCount = ((GridView)sender).Columns.Count;
int autoGenButtonRows = 0;
if (((GridView)sender).AutoGenerateDeleteButton || ((GridView)sender).AutoGenerateEditButton || ((GridView)sender).AutoGenerateSelectButton) {
autoGenButtonRows = 1;
}
for (int columnIndex = 0; columnIndex < columnsCount; columnIndex++) {
System.Web.UI.WebControls.TableCell cell = row.Cells[columnIndex + autoGenButtonRows];
cell.Attributes[DesignerRegion.DesignerRegionAttributeName] = _regionCount.ToString(NumberFormatInfo.InvariantInfo);
_regionCount++;
}
}
return;
}
///
/// Override to execute custom UI-less poststeps to choosing a data source
///
protected override void OnSchemaRefreshed() {
if (InTemplateMode) {
// We ignore the SchemaRefreshed event if we are in template
// editing mode since the designer won't reflect the changes.
return;
}
if (_ignoreSchemaRefreshedEvent) {
return;
}
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(SchemaRefreshedCallback), null, SR.GetString(SR.GridView_SchemaRefreshedTransaction));
UpdateDesignTimeHtml();
}
finally {
Cursor.Current = originalCursor;
}
}
///
/// Overridden by the designer to shadow various runtime properties
/// with corresponding properties that it implements.
///
///
/// The properties to be filtered.
///
protected override void PreFilterProperties(IDictionary properties) {
base.PreFilterProperties(properties);
// remove the browsable attribute of Columns in template mode so you can't bring up
// the dialog and delete the column that's in template mode
if (InTemplateMode) {
PropertyDescriptor fieldsProp = (PropertyDescriptor)properties["Columns"];
properties["Columns"] =
TypeDescriptor.CreateProperty(fieldsProp.ComponentType, fieldsProp, BrowsableAttribute.No);
}
}
///
/// Called by the action list to remove a field on the GridView
///
internal void RemoveField() {
Cursor originalCursor = Cursor.Current;
try {
Cursor.Current = Cursors.WaitCursor;
InvokeTransactedChange(Component, new TransactedChangeCallback(RemoveFieldCallback), null, SR.GetString(SR.GridView_RemoveFieldTransaction));
UpdateDesignTimeHtml();
}
finally {
Cursor.Current = originalCursor;
}
}
///
/// Transacted change callback to remove a field.
///
private bool RemoveFieldCallback(object context) {
int selectedFieldIndex = SelectedFieldIndex;
if (selectedFieldIndex >= 0) {
((GridView)Component).Columns.RemoveAt(selectedFieldIndex);
if (selectedFieldIndex == ((GridView)Component).Columns.Count) {
SelectedFieldIndex--;
UpdateDesignTimeHtml();
}
return true;
}
return false;
}
///
/// Saves the changed states of the checkboxes and alters the settings of the control to match.
///
private void SaveManipulationSetting(ManipulationMode mode, bool newState) {
DataControlFieldCollection fields = ((GridView)Component).Columns;
bool changedCommandField = false;
ArrayList fieldsToRemove = new ArrayList();
foreach (DataControlField field in fields) {
CommandField commandField = field as CommandField;
if (commandField != null) {
switch (mode) {
case ManipulationMode.Edit:
commandField.ShowEditButton = newState;
break;
case ManipulationMode.Delete:
commandField.ShowDeleteButton = newState;
break;
case ManipulationMode.Select:
commandField.ShowSelectButton = newState;
break;
}
// remove the field if it's empty
if (!newState &&
!commandField.ShowEditButton &&
!commandField.ShowDeleteButton &&
!commandField.ShowInsertButton &&
!commandField.ShowSelectButton) {
fieldsToRemove.Add(commandField);
}
changedCommandField = true;
}
}
// remove outside the loop so we're not altering the collection we're enumerating over.
foreach (object o in fieldsToRemove) {
fields.Remove((DataControlField)o);
}
if (!changedCommandField && newState) {
CommandField commandField = new CommandField();
switch (mode) {
case ManipulationMode.Edit:
commandField.ShowEditButton = newState;
break;
case ManipulationMode.Delete:
commandField.ShowDeleteButton = newState;
break;
case ManipulationMode.Select:
commandField.ShowSelectButton = newState;
break;
}
fields.Insert(0, commandField);
}
PropertyDescriptor propDesc;
if (!newState) {
GridView gridView = ((GridView)Component);
switch (mode) {
case ManipulationMode.Edit:
propDesc = TypeDescriptor.GetProperties(typeof(GridView))["AutoGenerateEditButton"];
propDesc.SetValue(Component, newState);
break;
case ManipulationMode.Delete:
propDesc = TypeDescriptor.GetProperties(typeof(GridView))["AutoGenerateDeleteButton"];
propDesc.SetValue(Component, newState);
break;
case ManipulationMode.Select:
propDesc = TypeDescriptor.GetProperties(typeof(GridView))["AutoGenerateSelectButton"];
propDesc.SetValue(Component, newState);
break;
}
}
}
///
/// Transacted change callback for SchemaRefreshed event.
///
private bool SchemaRefreshedCallback(object context) {
IDataSourceViewSchema schema = GetDataSourceSchema();
if (DataSourceID.Length > 0 && schema != null) {
if (((GridView)Component).Columns.Count > 0 || ((GridView)Component).DataKeyNames.Length > 0) {
// warn that we're going to obliterate the fields you have
if (DialogResult.Yes == UIServiceHelper.ShowMessage(Component.Site,
SR.GetString(SR.DataBoundControl_SchemaRefreshedWarning, SR.GetString(SR.DataBoundControl_GridView), SR.GetString(SR.DataBoundControl_Column)),
SR.GetString(SR.DataBoundControl_SchemaRefreshedCaption, ((GridView)Component).ID),
MessageBoxButtons.YesNo)) {
((GridView)Component).DataKeyNames = new string[0];
((GridView)Component).Columns.Clear();
SelectedFieldIndex = -1; // we don't want a design-time html update yet.
AddKeysAndBoundFields(schema);
}
}
else {
// just ask if we should generate new ones, since you don't have any now
AddKeysAndBoundFields(schema);
}
}
else { // either the DataSourceID property was set to "" or we don't have schema
if (((GridView)Component).Columns.Count > 0 || ((GridView)Component).DataKeyNames.Length > 0) {
// ask if we can clear your fields/keys
if (DialogResult.Yes == UIServiceHelper.ShowMessage(Component.Site,
SR.GetString(SR.DataBoundControl_SchemaRefreshedWarningNoDataSource, SR.GetString(SR.DataBoundControl_GridView), SR.GetString(SR.DataBoundControl_Column)),
SR.GetString(SR.DataBoundControl_SchemaRefreshedCaption, ((GridView)Component).ID),
MessageBoxButtons.YesNo)) {
((GridView)Component).DataKeyNames = new string[0];
((GridView)Component).Columns.Clear();
SelectedFieldIndex = -1; // we don't want a design-time update yet.
}
}
}
return true;
}
///
/// Gets the curent states of the fields collection.
///
private void UpdateFieldsCurrentState() {
_currentSelectState = ((GridView)Component).AutoGenerateSelectButton;
_currentEditState = ((GridView)Component).AutoGenerateEditButton;
_currentDeleteState = ((GridView)Component).AutoGenerateDeleteButton;
foreach (DataControlField field in ((GridView)Component).Columns) {
CommandField commandField = field as CommandField;
if (commandField != null) {
if (commandField.ShowSelectButton) {
_currentSelectState = true;
}
if (commandField.ShowEditButton) {
_currentEditState = true;
}
if (commandField.ShowDeleteButton) {
_currentDeleteState = true;
}
}
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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- PolyLineSegment.cs
- ToolStripRendererSwitcher.cs
- BooleanToVisibilityConverter.cs
- SimpleMailWebEventProvider.cs
- CheckBoxField.cs
- RemotingConfigParser.cs
- CultureSpecificCharacterBufferRange.cs
- XhtmlBasicFormAdapter.cs
- FilteredSchemaElementLookUpTable.cs
- ICspAsymmetricAlgorithm.cs
- DataGridHeaderBorder.cs
- handlecollector.cs
- RegexParser.cs