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When I click on a row in my GridView, I want to go to a other page with the ID I get from the database.
In my RowCreated event I have the following line:
e.Row.Attributes.Add(
"onClick",
ClientScript.GetPostBackClientHyperlink(
this.grdSearchResults, "Select$" + e.Row.RowIndex));
To prevent error messages i have this code:
protected override void Render(HtmlTextWriter writer)
{
// .NET will refuse to accept "unknown" postbacks for security reasons.
// Because of this we have to register all possible callbacks
// This must be done in Render, hence the override
for (int i = 0; i < grdSearchResults.Rows.Count; i++)
{
Page.ClientScript.RegisterForEventValidation(
new System.Web.UI.PostBackOptions(
grdSearchResults, "Select$" + i.ToString()));
}
// Do the standard rendering stuff
base.Render(writer);
}
How can I give a row a unique ID (from the DB) and when I click the row, another page is opened (like clicking on a href) and that page can read the ID.
386
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Martijn,
Here's another example with some nifty row highlighting and a href style cursor:
protected void gvSearch_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#ceedfc'");
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=''");
e.Row.Attributes.Add("style", "cursor:pointer;");
e.Row.Attributes.Add("onclick", "location='patron_detail.aspx?id=" + e.Row.Cells[0].Text + "'");
}
}The code above works in .NET 3.5. However, you can't set your id column to Visible="false" because you'll get a blank query string value for your id key:
<asp:GridView ID="gvSearch" runat="server" OnRowDataBound="gvSearch_RowDataBound" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="id" Visible="false" />
<asp:BoundField DataField="first_name" HeaderText="First" />
<asp:BoundField DataField="last_name" HeaderText="Last" />
<asp:BoundField DataField="email" HeaderText="Email" />
<asp:BoundField DataField="state_name" HeaderText="State" />
</Columns>
</asp:GridView>So change the first column to this instead:
<asp:BoundField DataField="id" ItemStyle-CssClass="hide" />Add this css to the top of your page:
<head>
<style type="text/css">
.hide{
display:none;
}
</style>
<head>But to hide the first cell of your header row, add this to your gvSearch_RowDataBound() in code-behind:
if (e.Row.RowType == DataControlRowType.Header)
{
e.Row.Cells[0].CssClass = "hide";
}Obviously, you could have hidden the id column in code-behind too, but this will result in more text in your markup than a css class:
e.Row.Cells[0].Attributes.Add("style", "display:none;");
e.Row.Attributes.Add("style", "cursor:pointer;");If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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