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How to parse data from Gridview row to another page using C# and ASP.NET

I would like to parse a row of data from Gridview in ASP.NET to a second page displaying contents of the row data from the previous page. My Gridview has already been linked to the database.
My current Gridview looks something like this:
I would like to achieve this when I click on the send details hyperlink:
If I click on the second row the data from that row will display in the next page
The following codes are what I had put under my link button itemTemplate:
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("name") %>'></asp:Label>
<asp:LinkButton ID="viewTours" runat="server" CommandName="view" CommandArgument='<%# Bind("name") %>' PostBackUrl='<%#"~/details.aspx?RowIndex=" + Container.DataItemIndex %>'>View</asp:LinkButton>
</ItemTemplate>
This is my page load method from the second page where I want to load the data from.
protected void Page_Load(object sender, EventArgs e)
{
if (this.Page.PreviousPage != null)
{
int rowIndex = int.Parse(Request.QueryString["RowIndex"]);
GridView GridView = (GridView)this.Page.PreviousPage.FindControl("GridView");
GridViewRow row = GridView.Rows[rowIndex];
name.Text = (row.FindControl("name") as Label).Text;
//name.Text = row.Cells[0].Text; (this did not work either, i got the same error)
}
}
However I get a squiggly line on name.Text saying that it does not exist, even though I do have a label with the id name in the design view of my html (second) page.
How can I make it such that I can parse data from the selected Gridview row to another page? Assuming that I can customize the second page and put the labels wherever I like.
This is the code from my gridview. As my binding has been done through the UI I dont have much codes for it, except to redirect the selected gridview row to another page.
protected void GridView_SelectedIndexChanged(object sender, EventArgs e)
{
Session["tour"] = GridView;
Response.Redirect("tourDetails.aspx");
}
I still get the error that the label text does not exist, when it actually exists in the page itself.
Image of the Label with the id=name:
My label DOES contain runat="server":

You are confusing binding data with structure. When you try to get a control with the name key, you really mean Label1, so change
name.Text = (row.FindControl("name") as Label).Text;
to
name.Text = (row.FindControl("Label1") as Label).Text;

Hidden Field Value not finding value

I have an hiddenfield field in my gridview but the code behind cant get its value maybe someone could find the problem.
HTML:
<asp:TemplateField HeaderText="TweetID" Visible="false">
<ItemTemplate>
<asp:HiddenField ID="TweetID" runat="server" Value='<%#Eval("TweetID") %>' />
</ItemTemplate>
</asp:TemplateField>
.cs:
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int index = Convert.ToInt32(e.RowIndex);
HiddenField tid = GridView1.Rows[index].FindControl("TweetID") as HiddenField;
//Response.Write(tid.Value);
TweetHelper.RemoveTweet( Convert.ToInt32(tid.Value), 1);
}
by the way the response writes nothing.

Based on your code above what you are doing is overkill.
Either make TweetID a Gridview.DataKey.
Or if that's not an option, convert your Delete button to a template field and add TweetID as a CommandArgument to the Delete button.

Your code should work fine.However another way to find the control is
GridViewRow row = GridView1.Rows[e.RowIndex];
HiddenField hdn = (HiddenField)row.FindControl("TweetID");
string value = hdn.Value;
or simply
var tweetid = ((HiddenField)GridView1.Rows[e.RowIndex].FindControl("TweetID")).Value;

Using a Button click to execute ASP.net C# gridview

It seems like this would be simple, but for the life of me, I can't figure out how it would work.
I have a gridview.
I have a standard button.
How do I use the button click to display the gridview?
Any suggestions?

This is a brief example from the MSDN page: (https://msdn.microsoft.com/en-us/library/bb907626.aspx)
You might to add an asp:TemplateField inside your GridView and through the CommandArgument property in the Button, set the current row index.
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="AddButton" runat="server"
CommandName="AddToCart"
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
Text="Add to Cart" />
</ItemTemplate>
</asp:TemplateField>
And in your code, in the RowCommand event:
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) {
if (e.CommandName == "AddToCart") {
// Retrieve the row index stored in the
// CommandArgument property.
int index = Convert.ToInt32(e.CommandArgument);
// Retrieve the row that contains the button
// from the Rows collection.
GridViewRow row = GridView1.Rows[index];
// Add code here to add the item to the shopping cart.
}
}
Hope this help you.

cell value in gridview is not getting in asp.net

im not getting the valu of specic row in row data bound event , value coming null;
<asp:TemplateField>
<HeaderTemplate>
Today's pos
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="lbl_TodayPos" runat="server" Text='<%# Eval("CurrentPosition") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
aspx.cs code
protected void GrdKeyWord_RowCommand(object sender, GridViewCommandEventArgs e)
{
string value = GrdKeyWord.Rows[rowindex].Cells[5].ToString();
}

The value you are looking for is stored in a label control not in a table cell. Therefore, you need to use FindControl on that row to access the lbl_TodayPos:
Label myLabel = (Label)GrdKeyWord.Rows[rowindex].FindControl("lbl_TodayPos");
string value = myLabel.Text;
If you autogenerate the columns in the gridview, or if you used 'BoundField' (instead of TemplateField) you could use .Cells[]. Because, in this case, you would have gridview rendered as pure html table with table cells.

Parent-Child Gridview in ASP.net

I have two GridView in ASP.net 3.5 page. I have HyperLink field as one of the fields in the First GridView.
On click of this hyperlink I need to call display the 2nd grid by passing some values to a method showAllRecords(value from hyperlink)
How do I do this?
Thanks

You can try a TemplateField like this for GridView1 (primary GridView)
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton runat="server" ID="LinkButton1" CommandName="cmdName" CommandArgument='<%# Eval("IdColumn") %>' > LinkButton</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
and in GridView1's RowCommand, you can get the CommandArgument and setup the DataSource for GridView2 (child GridView).
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if(e.CommandName = "cmdName")
{
var arg = e.CommandArgument;
// use arg to filter GridView2's DataSource
GridView2.DataSource = FilteredDataSource;
GridView2.DataBind();
// show GridView2 if it's hidden.
}
}

Maybe the following blog post could give you a hint;
http://www.tugberkugurlu.com/archive/parent-child-view-in-a-single-table-with-gridview-control-on-asp-net-web-forms

First you need to handle SelectedIndexChanged event on the first grid and then get the value from the hyperlink. Is the hyperlink a DataKey? If it is then you get it by GridOne.SelectedDataKey.Values["key"] otherwise get the actual cell by valuefromGridOne = GridOne.SelectedRow.Cells[num].Text where number is the cell number. Once you have it you can pass the value to your second grid by handling Selecting event of the objectDataSource (assuming you use it to bind data) and passing the value like this e.InputParameters["dataKey"] = valuefromGridOne;