public CheckBox[] cb = null;
int z=0;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
cb = new CheckBox[count - k];
//Database code.........
while (dr.Read())//read data from access database
{
cb[z] = new CheckBox();
cb[z].Text = dr["Member_Name"].ToString();
Panel2.Controls.Add(cb[z]);
Panel2.Controls.Add(new LiteralControl("</br>"));
z = z + 1;
}
}
}
protected void Button6_Click(object sender, EventArgs e)
{
for (int x = 0; x < cb.Length; x++)//ERROR IS HERE:Object reference not set to an instance of an object.
{
if (cb[x].Checked == true)//EVERY TIME I GOT FALSE VALUE
{
//processing check boxes
}
}
}
I have a GridView that I was previously populating via an ObjectDataSource, and this code was working perfectly (ie, when the checkbox was checked Checkbox.Checked = true):
public static CheckBox[] cb = null; int z=0; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { cb = new CheckBox[count - k]; //Database code......... while (dr.Read())//read data from access database { cb[z] = new CheckBox(); cb[z].Text = dr["Member_Name"].ToString(); Panel2.Controls.Add(cb[z]); Panel2.Controls.Add(new LiteralControl("</br>")); z = z + 1; } } } protected void Button6_Click(object sender, EventArgs e) { for (int x = 0; x < cb.Length; x++)//ERROR IS HERE:Object reference not set to an instance of an object. { if (cb[x].Checked == true) { //processing check boxes } } }
I a using Gridview bind to a dataset. For this example, I am only setting up two columns.
1. Edit button 2. A template field that will display "No" and in Edit mode will show a checkbox.
When I run this code... the page is displayed... I click on the edit button... the row changes to edit mode and I CLICK the checkbox (can see a it checked).Then click on "Update" Button... which takes me to GridView1_RowUpdating event. If I check the status of the "box"... it's checked status is ALWAYS false Why?
If view_test button was clicked, initializing the dialog, before the form post backs the checkbox ch1.Checked property in .Net is always False. However if you just postback without initializing the dialog it works as expected.
I'm having trouble getting selected rows in asp.net. i tried to debug it and found out that the answer to "chkRow.Checked" is always false eventhough it is selected. I'm new to asp.net.here is my code.
Protected Sub btnApproveYes_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnApproveYes.Click Dim modID As String = String.Empty For Each row As GridViewRow In gvModule.Rows
Basically when the page runs, if i tick the checkbox it always runs through the "if ticked=false" It always used to work and i cant figure out what i changed.
but since the value is 'false', it doesn't seem to cast to boolean. What should I do? I don't like checking for == "false" and then converting to boolean. is there a cleaner way? Update All I am doing is:
if (Convert.ToBoolean(request.Form["somecheckbox"])) { }
I want to select all checkBox in Gridview when click to header checkBox.I have created design such that CheckBox is not available to header of Gridview.It is in other table. Below is design of gridview.
- How can I uncheck a checkbox using client side code when the other checkbox is checked? - Is there a way to check server side on form submission that at least one check box is checked?
I am displaying my table data using listview control. It is working fine.
Now I would like to add a checkbox in front of every item so then when user checks the checkbox and click on delete button inside or outside the listview control then i want all the records to be deleted.
I want select only one checkbox among 5 checkboxes if user selects one checkbox another which are checked are need to uncheck. How can i do this in client side .....
I have an approve button.on clicking on this button it should show that an inactive value is present .Onclicking yes conformation it should save the data or else clicking on no conformation should return false; how i will do that?After alert it always submit the data.Â
string otherAffiliateName = txtRequestedAffiliate.Text; int inActiveAffiliates = new BLRating().InActiveAAffiliateChecking(otherAffiliateName); if (inActiveAffiliates > 0)
[code]...
This is the code i used.how i wiil stay back on Confirm 'no' click?
