I want to auto click the search button whenever user select a value from drop down list.
code snippet:
Added the event handler in InitializeComponent() :
this.ddltrim.SelectedIndexChanged += new System.EventHandler(this.ddltrim_SelectedIndexChanged);
code:
private void ddltrim_SelectedIndexChanged(object sender, System.EventArgs e)
{
if(ddlStores.Items.Count ==1)
btnSearch_Click("Search", null);
}
In designer:
<asp:dropdownlist id=ddltrim width="100%" Runat="server" AutoPostBack="True" EnableViewState="True">
<asp:ListItem Value="Select Submodel" Selected="True">
Select SubModel
</asp:ListItem></asp:dropdownlist>
But selectIndexChanged in not firing when i select any value from ddl. Have to manually click the button search.
Try
<asp:dropdownlist id=ddltrim width="100%" Runat="server" AutoPostBack="True" EnableViewState="True" onselectedindexchanged="ddltrim_SelectedIndexChanged">
<asp:ListItem Value="Select Submodel" Selected="True">Select SubModel</asp:ListItem>
Try to set your add event code in Page_PreInit method
protected void Page_PreInit(object sender, EventArgs e)
{
this.ddltrim.SelectedIndexChanged += new System.EventHandler(this.ddltrim_SelectedIndexChanged);
}
Related
Inherited code with a dropdownlist which is used to populate some GridViews. When a selection is made in the dropdownlist, the selection does not keep and it jumps back up to the first record. A requently mentioned fix is to add the !Page.IsPostBack in the Page_Load event, however in doing so does not resolve the issue.
<asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="true"
DataSourceID="SqlDataSource2" DataTextField="FullAddress"
DataValueField="UniqueRecordID" Width="445px" Height="20px"
style="margin-left: 0px" TabIndex="8" AppendDataBoundItems="true"
OnSelectedIndexChanged="resetGridsAndLabel">
</asp:DropDownList>
public partial class _Default : Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
DropDownList2.DataSource = sqlDataSource2;
DropDownList2.DataBind();
}
Are you setting the data source for the DDL anywhere else on the page?
I have a DropDownlist inside an Edititemtemplate. I want to access the selected value from code behind.
My aspx
<EditItemTemplate>
<asp:DropDownList ID="ddlcountry" runat="server">
<asp:ListItem Text="Select Country" Value="0" disabled selected></asp:ListItem>
<asp:ListItem Text="india" Value="1"></asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
My aspx.cs
protected void ListView1_ItemUpdating(object sender, ListViewUpdateEventArgs e)
{
//I want to access the dropdown value here//
}
protected void ListView1_ItemUpdating(object sender, ListViewUpdateEventArgs e)
{
DropDownList ddlCountries = (ListView.EditItem.FindControl("ddlcountry") as DropDownList);
if(ddlCountries!=null)
{
string value=ddlCountries.SelectedValue;
}
}
Transfer listbox items from one asp.net page to another using session. I want to transfer the items of a list box from one asp.net page to another. The code somehow is throwing error. The items in the listbox are not being retrieved either. I want to do the same with a check box list. Hopefully the listbox issue will help[ me solve that too. Please advice.
First Page
<asp:ListBox ID="SelectedItems" runat="server" SelectionMode="Multiple"/>
<asp:Button ID="sbmtButton" runat="server" Text="Submit" Width="152px" OnClick="sbmtButton_Click" />
.cs for the First Page
protected void sbmtButton_Click(object sender, EventArgs e)
{Session["wrd"] = SelectedItems;Server.Transfer("~/aftrSubmit.aspx";);}
Second Page
.cs for the Second Page
protected void Page_Load(object sender, EventArgs e)
{if (!this.IsPostBack){Prescription_list = (ListBox)Session["wrd"];}}
First Page ASPX Code:
<asp:ListBox ID="SelectedItems" runat="server" SelectionMode="Multiple">
<asp:ListItem Text="A"></asp:ListItem>
<asp:ListItem Text="B"></asp:ListItem>
<asp:ListItem Text="C"></asp:ListItem>
</asp:ListBox>
<asp:Button ID="sbmtButton" runat="server" Text="Submit" Width="152px" OnClick="sbmtButton_Click" />
First Page C# Code-Behind:
protected void sbmtButton_Click(object sender, EventArgs e)
{
ListItem[] x = new ListItem[SelectedItems.Items.Count];
SelectedItems.Items.CopyTo(x, 0);
Session["wrd"] = x;
Server.Transfer("~/aftrSubmit.aspx");
}
Second Page ASPX Code:
<asp:ListBox ID="Prescription_list" runat="server" SelectionMode="Multiple"/>
Second Page C# Code-Behind:
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
ListItem[] x = (ListItem[])Session["wrd"];
Prescription_list.Clear();
Prescription_list.Items.AddRange(x);
}
}
I have an asp.net ImageButton inside a RadGrid (in a column) that when clicked opens a popup window. I can also expand this same RadGrid to reveal a nested grid. I have a button inside here that I need to assign a click event to such that it opens the same popup. How do I fire off an ImageButton click that's housed inside a RadGrid?
Here is the aspx and the "imgEdit" is what I need to fire off:
<MasterTableView DataKeyNames="SuggestionID">
<EditFormSettings CaptionFormatString="Edit Suggestion: {0}" CaptionDataField="Title"
InsertCaption="Add Suggestion" EditFormType="WebUserControl" PopUpSettings-Width="655px"
UserControlName="~/CommonUserControls/SuggestionControl.ascx">
</EditFormSettings>
<Columns>
<telerik:GridTemplateColumn UniqueName="EditAction" HeaderStyle-Width="32px" ItemStyle-Wrap="false"
Resizable="false">
<ItemTemplate>
<asp:ImageButton ID="imgEdit" runat="server" CommandName="Edit" Resizable="false"
ImageUrl="/ESDNET/Images/Icons/pencil.png" ToolTip="Edit Suggestion" Visible='<%# Eval("CanEdit") %>' />
You can achieve the same in different ways:
1) Directly attach the button click event of imagebutton
protected void imgEdit_Click(object sender, ImageClickEventArgs e)
{
// your code
}
2) Using CommandName:
protected void RadGrid1_ItemCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{
if(e.CommandName=="Edit")
{
}
}
3) If the commandname is Edit ,then it will autometically fire EditCommand
protected void RadGrid1_EditCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{
}
My Scenario,
When i select the option in list i need to perform some action like Textbox should be disabled. But i don find my breakpoint pointing to that action to be performed.Pls help
I guess you mean the SelectedIndexChanged event does not fire that is so because you'vent set the AutoPostBack to true.
<asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True"
onselectedindexchanged="RadioButtonList1_SelectedIndexChanged">
</asp:RadioButtonList>
Code
protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
{
TextBox4.Enabled = false;
}