Hi,
I have no problem when the grid has items in it.But the problem rises when I delete all the items in the grid where I am getting the empty grid layout.
The page is blank without any grid layout..
Please help
<telerik:RadGrid ID="RadGrid1" CssClass="RadGrid" EnableTheming="False" EnableEmbeddedBaseStylesheet="False" AllowMultiRowSelection="true" AllowMultiRowEdit="true"
Skin="WebBlue" runat="server" AllowAutomaticDeletes="True" AllowAutomaticInserts="True"
Width="97%" PageSize="14" AllowAutomaticUpdates="True" AllowPaging="True" AutoGenerateColumns="False"
ShowStatusBar="true" >
<ItemStyle CssClass="RadGridItem"></ItemStyle>
<HeaderStyle CssClass="RadGridHeader"></HeaderStyle>
<PagerStyle Mode="Slider" alwaysvisible="True" CssClass="RadGridPager" HorizontalAlign="Left" ></PagerStyle>
<ClientSettings >
<Selecting AllowRowSelect="true" />
</ClientSettings>
<MasterTableView CommandItemDisplay="Top" AutoGenerateColumns="False" NoMasterRecordsText="No Records found to display" Width="100%" EditMode="EditForms" >
<CommandItemTemplate>
<div style="padding:10px 0px;" class="newtd">
<table cellpadding ="0" cellspacing ="0" border ="0" width ="100%">
<tr>
<td style="padding-left:5px"> Filter : </td>
<td> <asp:TextBox autocomplete="off" ID="txtSearch" runat="server" OnTextChanged="txtSearch_TextChanged"></asp:TextBox> </td>
<td style="padding-left:40px"><telerik:RadCombobox ID="rcbFieldName" runat="server" AllowCustomText="True" width="140px" EmptyMessage="-------Select-------" CausesValidation="false">
<Items>
<telerik:RadComboBoxItem Text="Email" Value="Email" />
</Items>
</telerik:RadCombobox> </td>
<td align ="left" style="padding-right:40px">
<asp:ImageButton ID="btnSearch" runat="server" CommandName="btnSearch" ImageUrl="~/Images/icons/Zoom.gif" ImageAlign="Bottom" CausesValidation="false"/>
</td>
<td align="right" style="padding:10px;" valign="middle">
<asp:LinkButton Style="vertical-align: bottom" ID="btnEditSelected" runat="server"
CommandName="EditSelected" CausesValidation="false" OnClientClick="return FnEdit()" Visible='<%# RadGrid1.EditIndexes.Count = 0 %>' ><img style="border:0px;vertical-align:middle;" alt="" src="../Images/icons/Edit.gif" /> Edit Selected PowerAdmin</asp:LinkButton>
<asp:LinkButton ID="btnUpdateEdited" runat="server" CommandName="UpdateEdited" Visible='<%# RadGrid1.EditIndexes.Count > 0 %>'><img style="border:0px;vertical-align:middle;" alt="" src="../Images/icons/Save.gif" /> Update PowerAdmin</asp:LinkButton>
<asp:LinkButton ID="btnInsert" runat="server" CommandName="InitInsert" Visible='<%# Not RadGrid1.MasterTableView.IsItemInserted %>'><img style="border:0px;vertical-align:middle;" alt="" src="../Images/icons/Add.gif" /> Add new PowerAdmin</asp:LinkButton>
<asp:LinkButton ID="btnCancel" runat="server" CommandName="CancelAll" CausesValidation="false" Visible='<%# RadGrid1.EditIndexes.Count > 0 Or RadGrid1.MasterTableView.IsItemInserted %>'><img style="border:0px;vertical-align:middle;" alt="" src="../Images/icons/Cancel.gif" /> Cancel</asp:LinkButton>
<asp:LinkButton ID="LinkButton1"
runat="server" CommandName="DeleteSelected" CausesValidation="false" OnClientClick="return FnDelete()" ><img style="border:0px;vertical-align:middle;" alt="" src="../Images/icons/Delet.gif" /> Delete Selected PowerAdmin</asp:LinkButton>
<asp:LinkButton ID="LinkButton4" runat="server" CommandName="RebindGrid"><img style="border:0px;vertical-align:middle;" alt="" src="../Images/icons/Refresh.gif" /> Refresh </asp:LinkButton>
</td>
</tr>
</table>
</div>
</CommandItemTemplate>
<Columns>
<telerik:GridTemplateColumn UniqueName="SrlNo" AllowFiltering="False" ItemStyle-HorizontalAlign="Left" ItemStyle-Width="2%" >
<ItemTemplate >
<asp:Label ID="lblSrlNo" runat="server" />
</ItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridClientSelectColumn HeaderStyle-Width="3%" />
<telerik:GridBoundColumn DataField="SUserID" UniqueName="SUserID" Visible="False" ReadOnly="True"></telerik:GridBoundColumn>
<telerik:GridBoundColumn DataField="Email" UniqueName="Email" SortExpression="Email" HeaderText="Email" ShowSortIcon="False" >
<ItemStyle HorizontalAlign="Left" />
</telerik:GridBoundColumn>
<telerik:GridBoundColumn DataField="Password" UniqueName="Password" HeaderText="Password" ShowSortIcon="false" >
<ItemStyle HorizontalAlign="Left" />
</telerik:GridBoundColumn>
<telerik:GridCheckBoxColumn DataField="UserStatus" HeaderText="Status" SortExpression="Discontinued" UniqueName="Discontinued" EditFormColumnIndex="1">
<ItemStyle HorizontalAlign="Left" />
</telerik:GridCheckBoxColumn>
</Columns>
<EditFormSettings EditFormType="Template" >
<FormTableItemStyle Wrap="False"></FormTableItemStyle>
<FormCaptionStyle CssClass="RadGridHeader"></FormCaptionStyle>
<FormMainTableStyle BackColor="White" GridLines="Horizontal" CellPadding="3" Width="100%" CellSpacing="0"></FormMainTableStyle>
<FormTableStyle CellSpacing="0" CellPadding="2" CssClass="module" Height="110px" BackColor="White" />
<FormTableAlternatingItemStyle Wrap="False"></FormTableAlternatingItemStyle>
<EditColumn CancelText="Cancel edit" InsertText="Insert Order" UniqueName="EditCommandColumn1" ButtonType="ImageButton" UpdateText="Update record">
</EditColumn>
<FormTableButtonRowStyle HorizontalAlign="Right" CssClass="EditFormButtonRow"></FormTableButtonRowStyle>
<FormTemplate >
<table cellpadding="0" cellspacing="0" width="100%" border="0">
<tr><td style="height:3px;" colspan ="2"></td></tr>
<tr><td align="right" colspan="2">
<asp:ImageButton ID="btnUpdate" Text='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "Insert", "Update") %>' ImageUrl="~/Images/icons/Update.gif"
runat="server" CommandName='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "PerformInsert", "Update")%>'>
</asp:ImageButton>
<asp:ImageButton ID="Button1" Text="Cancel" runat="server" CausesValidation="False" ImageUrl="~/Images/icons/CancelEdit.gif"
CommandName="Cancel"></asp:ImageButton></td>
</tr>
<tr>
<td colspan="2">
<asp:HiddenField ID="hidSuserId" runat="server" Visible="False" value='<%#Bind("SUserID") %>' />
</td>
</tr>
<tr >
<td align="right" width="40%" >Email <font color="red" >*</font>: </td>
<td align="left" width="60%" ><asp:TextBox ID="txtemail" runat="server" Text='<%#Bind("Email") %>' ></asp:TextBox>
<asp:RequiredFieldValidator ID="ReqEmail" runat="server" ControlToValidate="txtEmail"
Display="Dynamic" CssClass="errormsg" ErrorMessage="Enter Email"></asp:RequiredFieldValidator><asp:RegularExpressionValidator ID="RegEmail" runat="server" ControlToValidate="txtEmail"
Display="Dynamic" CssClass="errormsg" ErrorMessage="Invalid Email" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator></td>
</tr>
<tr><td colspan="2" align="center" >
<div id="DivPasswordReadOnly" runat="server">
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr><td style="height:5px"></td></tr>
<tr><td align="right" width="40%">Password <font color="red" >*</font>: </td>
<td align="left" width="60%" ><asp:TextBox ID="txtpopPassword" runat="server" Text="**********" onclick='<%# "openPrompt(this, event, " & Eval("SUserId", "{0:#}") & ")"%>' readonly="true"></asp:TextBox></td></tr>
<tr><td style="height:5px"></td></tr>
<tr><td align="right" width="40%">User Status <font color="red" >*</font>: </td>
<td align="left" width="60%" >
<asp:RadioButton GroupName="grpuserstatus" runat="server" ID="checkDisable" text="Disable" Checked='<%# IIf(Val(""& Eval("UserStatus"))= 0,"False","True") %>'/>
<asp:RadioButton GroupName="grpuserstatus" runat="server" ID="checkEnable" text="Enable" Checked='<%# IIf(Val(""& Eval("UserStatus"))= 0,"True","False") %>'/>
</td></tr>
<tr><td style="height:5px"></td></tr>
</table>
</div>
<div id="DivPassword" runat="server" visible="false">
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr><td style="height:5px"></td></tr>
<tr><td align="right" width="40%">Password <font color="red" >*</font>: </td>
<td align="left" width="60%" ><asp:TextBox ID="txtPassword" TextMode="Password" runat="server" MaxLength="10" ></asp:TextBox><asp:RequiredFieldValidator
ID="reqPassword" runat="server" CssClass="errormsg" ControlToValidate="txtPassword" Display="Dynamic" ErrorMessage="Enter Password"></asp:RequiredFieldValidator><asp:RegularExpressionValidator
ID="regPassword" runat="server" ControlToValidate="txtPassword" CssClass="errormsg" Display="Dynamic" ErrorMessage="Invalid Password" ValidationExpression="\w{6,10}"></asp:RegularExpressionValidator></td></tr>
<tr><td style="height:5px"></td></tr>
<tr><td align="right" width="40%">Retype Password <font color="red" >*</font>: </td>
<td align="left" width="60%" ><asp:TextBox ID="txtRePassword" TextMode="Password" runat="server" MaxLength="10" ></asp:TextBox><asp:RequiredFieldValidator
ID="reqRePassword" runat="server" ControlToValidate="txtRePassword" CssClass="errormsg" Display="Dynamic" ErrorMessage="Enter Re-Type Password"></asp:RequiredFieldValidator><asp:RegularExpressionValidator
ID="regRePassword" runat="server" ControlToValidate="txtRePassword" CssClass="errormsg" Display="Dynamic" ErrorMessage="Invalid Re-Type Password" ValidationExpression="\w{6,10}"></asp:RegularExpressionValidator><asp:CompareValidator
ID="cmpPassword" runat="server" ControlToCompare="txtPassword" ControlToValidate="txtRePassword" CssClass="errormsg" Display="Dynamic" ErrorMessage="Password Mismatch" ></asp:CompareValidator></td></tr>
<tr><td style="height:5px"></td></tr>
</table>
</div>
<div id="checkstatus" runat="server" >
</div>
</td></tr>
<tr><td align="center"><asp:Label runat="server" ID="lblMsg" Text="" ForeColor="red"></asp:Label></td></tr>
</table>
</FormTemplate>
</EditFormSettings>
<ExpandCollapseColumn>
<HeaderStyle Width="20px"></HeaderStyle>
</ExpandCollapseColumn>
<RowIndicatorColumn>
<HeaderStyle Width="20px"></HeaderStyle>
</RowIndicatorColumn>
</MasterTableView>
<FilterMenu EnableTheming="True" Skin="WebBlue" enableembeddedbasestylesheet="False">
<CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>
</FilterMenu>
<AlternatingItemStyle CssClass="RadGridItem"></AlternatingItemStyle>
<SortingSettings SortToolTip="Click here to sort Email"></SortingSettings>
</telerik:RadGrid>
and my server side code is
Imports
Telerik.Web.UI
Partial
Class Clients_ManagePAdmin
Inherits System.Web.UI.Page
Dim oDB As New CMSDatabase
Dim SqlQry As String = ""
Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
Dim UserTheme As MyThemes = Val(Session("@Theme"))
Me.Theme = UserTheme.ToString
Dim RadSkin As String = Replace(UserTheme.ToString, "_", "")
RadGrid1.Skin = RadSkin
' rcbFieldName.Skin = RadSkin
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Ajax.Utility.RegisterTypeForAjax(
Me.GetType)
SqlQry =
"select SUserId,Email,Password, case UserStatus when 0 then 'true' else 'false' end as UserStatus from siteusers where usertype= " & UserType.PowerAdmin
If Not oDB.IsExist(SqlQry) Then
Response.Redirect(
"PowerAdmin.aspx")
End If
End Sub
<Ajax.JavascriptMethod()> _
Function updaterecords(ByVal Passs, ByVal SUserId) As Boolean
Dim SqlQry As String = "UPDATE siteusers set password='" & NDCryption.Encrypt(Passs) & "' where SUserId = " & SUserId & ""
Return oDB.ExecuteNonQuery(SqlQry)
End Function
Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource
Dim sqlqry As String
Dim DT As New DataTable
'sqlqry = "select SUserId,Email,Password,UserStatus from siteusers where usertype= " & UserType.PowerAdmin
sqlqry =
"select SUserId,Email,Password, case UserStatus when 0 then 'true' else 'false' end as UserStatus from siteusers where usertype= " & UserType.PowerAdmin
If oDB.IsExist(sqlqry) = True Then
DT = oDB.GetDataTable(sqlqry)
RadGrid1.Visible =
True
RadGrid1.DataSource = DT
End If
End Sub
Protected Sub RadGrid1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemDataBound
If e.Item.ItemType = GridItemType.AlternatingItem Or e.Item.ItemType = Telerik.Web.UI.GridItemType.Item Then
Dim lbl As Label
lbl =
CType(e.Item.FindControl("lblSrlNo"), Label)
lbl.Text = e.Item.ItemIndex + 1
Try
Dim item As GridDataItem
item = e.Item
item(
"Password").Text = NDCryption.Decrypt(item("Password").Text)
If Trim(item("Password").Text) <> "" Then
item(
"Password").Text = "".PadLeft(Len(item("Password").Text), "*")
End If
Catch ex As Exception
End Try
End If
If TypeOf e.Item Is GridEditFormItem AndAlso e.Item.IsInEditMode Then
End If
End Sub
Private Sub RadGrid1_SortCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridSortCommandEventArgs) Handles RadGrid1.SortCommand
If e.Item.OwnerTableView.DataMember = "Orders" And e.SortExpression = "Email" Then
e.Canceled =
True
Dim expression As New GridSortExpression()
expression.FieldName =
"Email"
If e.Item.OwnerTableView.SortExpressions.Count = 0 OrElse e.Item.OwnerTableView.SortExpressions(0).FieldName <> e.SortExpression Then
expression.SortOrder = GridSortOrder.Descending
ElseIf e.Item.OwnerTableView.SortExpressions(0).SortOrder = GridSortOrder.Descending Then
expression.SortOrder = GridSortOrder.Ascending
ElseIf e.Item.OwnerTableView.SortExpressions(0).SortOrder = GridSortOrder.Ascending Then
expression.SortOrder = GridSortOrder.None
End If
e.Item.OwnerTableView.SortExpressions.AddSortExpression(expression)
e.Item.OwnerTableView.Rebind()
End If
End Sub 'RadGrid1_SortCommand
Protected Sub txtSearch_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
Dim txt As TextBox = TryCast(DirectCast(sender, TextBox), TextBox)
Dim list As RadComboBox = DirectCast(((txt.NamingContainer).FindControl("rcbFieldName")), RadComboBox)
Dim [option] As String
If list.SelectedValue = "SUserId" OrElse list.SelectedValue = "UserStatus" Then
[option] =
" = "
Else
[option] =
" LIKE "
End If
Dim filterExpression As String
If [option] = " = " Then
filterExpression =
"(" + list.SelectedValue + [option] + txt.Text + ")"
Else
filterExpression =
"(" + list.SelectedValue + [option] + "'" + txt.Text + "%'" + ")"
End If
RadGrid1.MasterTableView.FilterExpression = filterExpression
RadGrid1.MasterTableView.Rebind()
End Sub
Protected Sub RadGrid1_UpdateCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles RadGrid1.UpdateCommand
e.Canceled =
True
Dim item As GridEditableItem = TryCast(e.Item, GridEditableItem)
'Dim txtsid As TextBox
'txtsid = CType(e.Item.OwnerTableView.Items(e.Item.ItemIndex)("SUserID").Controls(0), TextBox)
Dim hidSuserid = Val(CType(item.FindControl("hidSuserId"), HiddenField).Value)
Dim radioEnable = CType(item.FindControl("checkEnable"), RadioButton).Checked
Dim txtEmail As TextBox = CType(item.FindControl("txtEmail"), TextBox)
Dim lblmsg As Label = CType(item.FindControl("lblmsg"), Label)
'lblmsg.Text = hidSuserid
SqlQry =
"select Email from SiteUsers where Email='" & txtEmail.Text & "' and SuserId <> " & hidSuserid
If oDB.ExecuteScaler(SqlQry) = "" Then
SqlQry =
"Update SiteUsers Set Email='" & txtEmail.Text & "',userstatus=" & IIf(radioEnable = True, 0, 1) & " where SUserId = " & hidSuserid
oDB.ExecuteNonQuery(SqlQry)
item.Edit =
False
RadGrid1.rebind()
Else
lblmsg.Text =
"Email Already Exists"
End If
End Sub
Protected Sub RadGrid1_DeleteCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles RadGrid1.DeleteCommand
Dim item As GridDataItem = DirectCast(e.Item, GridDataItem)
Try
hidUpdateuser.Value =
""
SqlQry =
"DELETE from SiteUsers where SuserId='" & e.Item.Cells(4).Text & "'"
oDB.ExecuteNonQuery(SqlQry)
hidUpdateuser.Value =
"Deleted"
Catch ex As Exception
RadGrid1.Controls.Add(
New LiteralControl("Unable to delete Employee. Reason: " + ex.Message))
e.Canceled =
True
End Try
End Sub
Protected Sub RadGrid1_InsertCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles RadGrid1.InsertCommand
e.Canceled =
True
Dim SqlQry As String = ""
Dim editedItem As GridEditableItem = CType(e.Item, GridEditableItem)
Dim txtEmail As TextBox = CType(editedItem.FindControl("txtEmail"), TextBox)
Dim txtPassword As TextBox = CType(editedItem.FindControl("txtPassword"), TextBox)
'Password = NDCryption.Encrypt(txtPassword.Text)
SqlQry =
"insert into SiteUsers([ClientID], [Email], [Password], [UserStatus],[UserType],[Authenticate]) values (0,'" & txtEmail.Text.Trim & "','" & NDCryption.Encrypt(txtPassword.Text) & "'," & UserStatue.Enabled & "," & UserType.PowerAdmin & "," & UserAuthenticate.CMSSite & ")"
oDB.ExecuteNonQuery(SqlQry)
editedItem.Edit =
False
RadGrid1.rebind()
End Sub
1 Answer, 1 is accepted
Rank 2
Try the following code snippet in the NeedDataSource event of the RadGrid to see the layout of the grid when the datasource is empty:
if(dtTable.Rows.Count==0)
{
RadGrid1.DataSource = new string[] { };
}
Thanks,
Princy