Multiple delete rows in radgrid - asp.net

Question

My problem :
I want to delete all selected records using checkbox in RadGrid..
How to write the code for this..
I have a code for simple GridView But its not working in RadGrid.

Answer 1

Please try with below code snippet.
Method1
.aspx
<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False"
OnNeedDataSource="RadGrid1_NeedDataSource">
<MasterTableView DataKeyNames="ID">
<Columns>
<telerik:GridBoundColumn DataField="Name" UniqueName="Name" HeaderText="Name">
</telerik:GridBoundColumn>
<telerik:GridTemplateColumn>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridEditCommandColumn>
</telerik:GridEditCommandColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
.aspx.cs
protected void Button1_Click(object sender, EventArgs e)
{
foreach (GridDataItem item in RadGrid1.MasterTableView.Items)
{
CheckBox CheckBox1 = item.FindControl("CheckBox1") as CheckBox;
if (CheckBox1 != null && CheckBox1.Checked)
{
// Access data key
string strID = item.GetDataKeyValue("ID").ToString();
// Access column
string strName = item["Name"].Text; // "Name" is column unique name
// delete logic comes here
}
}
}
Method2
.aspx
<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False"
OnNeedDataSource="RadGrid1_NeedDataSource"
AllowMultiRowSelection="true">
<MasterTableView DataKeyNames="ID">
<Columns>
<telerik:GridClientSelectColumn>
</telerik:GridClientSelectColumn>
<telerik:GridBoundColumn DataField="Name" UniqueName="Name" HeaderText="Name">
</telerik:GridBoundColumn>
<telerik:GridEditCommandColumn>
</telerik:GridEditCommandColumn>
</Columns>
</MasterTableView>
<ClientSettings>
<Selecting AllowRowSelect="true" />
</ClientSettings>
</telerik:RadGrid>
.aspx.cs
protected void Button1_Click(object sender, EventArgs e)
{
foreach (GridDataItem item in RadGrid1.SelectedItems)
{
if (item.Selected)
{
// Access data key
string strID = item.GetDataKeyValue("ID").ToString();
// Access column
string strName = item["Name"].Text; // "Name" is column unique name
// delete logic comes here
}
}
}
Common code for both of above method.
.aspx
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
.aspx.cs
protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
dynamic data = new[] {
new { ID = 1, Name ="Name1",path="1.jpg"},
new { ID = 2, Name = "Name2",path="2.jpg"},
new { ID = 3, Name = "Name3",path="3.jpg"},
new { ID = 4, Name = "Name4",path="2.jpg"},
new { ID = 5, Name = "Name5",path="3.jpg"}
};
RadGrid1.DataSource = data;
}