how to find out the which button is clicked in page

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In my page three linkbuttons are there each button based report will be generated and i want to how to find out which linkbutton is clicked in normal button event

please share any idea to me

Posted 15-Oct-13 23:11pm

krish2013

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Thanks7872 16-Oct-13 5:14am

Define different click events for all the link buttons. Write code for that link button in related click event. Whats the problem?

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CodeBlack · Accepted Answer · 2013-10-15T23:28:00

Solution 1

There are two ways.

1. Define separate click events for all the link buttons as 'Rohan Leuva' suggested
2. Provide Command Argument with link button as mentioned below :

ASPX :

XML

<asp:LinkButton runat="server" ID="link1" OnClick="Lnk_Click" CommandArgument="1" Text="test Link 1"></asp:LinkButton>
        <asp:LinkButton runat="server" ID="link2" OnClick="Lnk_Click" CommandArgument="2" Text="test Link 2"></asp:LinkButton>
        <asp:LinkButton runat="server" ID="link3" OnClick="Lnk_Click" CommandArgument="3" Text="test Link 3"></asp:LinkButton>

Code Behind:

C#

protected void Lnk_Click(object sender, EventArgs e)
      {
          var button = (LinkButton)sender;
          var commandArgument = button.CommandArgument;

          if (commandArgument == "1")
          {
              // Link Button 1 Clicked
          }
          else if (commandArgument == "2")
          {
              // Link Button 2 Clicked
          }
          else if (commandArgument == "3")
          {
              // Link Button 3 Clicked
          }
      }

Posted 15-Oct-13 23:28pm

CodeBlack

Comments

krish2013 16-Oct-13 5:47am

hiii,
here var button = (LinkButton)sender; igot an error like "Unable to cast object of type 'System.Web.UI.WebControls.Button' to type 'System.Web.UI.WebControls.LinkButton".i can't find any solution please provide any solution to me.

CodeBlack 16-Oct-13 5:50am

Are you using Asp:LinkButton or Asp:Button ?

Use
var button = (LinkButton)sender;
if you are using linkbutton

Use
var button = (Button)sender;
if you are using button.

krish2013 16-Oct-13 5:57am

Hii,
Actually button is varible.but i am using asp:linkbutton itried previous your's posted one but i got same error on that

krish2013 16-Oct-13 6:03am

<asp:LinkButton ID="linkmenuitem1" runat="server" Text="Growth,Relative Performance and Lossratios"
ForeColor="White" OnClick="linkmenuitem1_Click" CommandArgument="1">

<asp:LinkButton ID="LinkButton1" runat="server" Text="MarketShare and change Relative Performance"
ForeColor="Black" OnClick="LinkButton1_Click" CommandArgument="2">

<asp:LinkButton ID="LinkButton2" runat="server" Text="Relative Performance loss Ratio"
ForeColor="Black" OnClick="LinkButton2_Click" CommandArgument="3">

<asp:Button ID="btngetdata" runat="server" Text="GetData" OnClick="btngetdata_Click" />

this is my .aspx code
i want to access the link button commmand argument in button click event

CodeBlack 16-Oct-13 6:10am

set OnClick event of every LinkButton to OnClick="btngetdata_Click" and on click event of btngetdata_Click write below code :

var commandArgument = string.Empty;

if (sender.GetType().Name == "LinkButton")
{
var button = (LinkButton)sender;
commandArgument = button.CommandArgument;
}
else
{
var button = (Button)sender;
commandArgument = button.CommandArgument;
}

if (commandArgument == "1")
{
// Link Button 1 Clicked
}
else if (commandArgument == "2")
{
// Link Button 2 Clicked
}
else if (commandArgument == "3")
{
// Link Button 3 Clicked
}

krish2013 16-Oct-13 6:52am

Hii It's not working

CodeBlack 16-Oct-13 6:53am

update your question with aspx and code behind page. instead of making comments field longer.