If I have two listboxes, with a button between them, how do I update the Items of ListBox2 if ListBox2's items are databound?
<asp:ListBox runat="server" ID="ListBox1" DataSourceID="DataSource1"
DataTextField="Name" DataValueField="ID" SelectionMode="Multiple" />
<asp:Button runat="server" ID="addButton" onClick="addButton_Click" />
[code]...
In my aspx registration page i have more then 6 item available in my list box, I am allowing multiple selection on it..I am not sure about how many items i will select each and every time. then how i have to store it into dataset and how to pass it as a mysql paramter...
View 1 RepliesI have a listbox controll and i want to bind it with an SqlDataSource.SqlDataSource must be declared in the code behind but i don't know where declare it(page init,page load...)and how to add sql parameter dynamically (parameters are the selected values of listbox, so they are multiple).
View 2 RepliesI wanted to catch and handle the ListBox Double Click event and looked for some sort of mehtod to do this. In one of the articles i found the usage of;
Request("__EVENTARGUMENT")
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If(Request("__EVENTARGUMENT") <>[code]....
I have implemented the code using this Request param and the code works fine. What i wanted was to understand how this works to accomplish the task.
I have a datasource that is connected to a stored procedure and I need to do a postback on the web page but do not want the sqldatasource to do a databind. What I am doing is when I change a dropdown box to fill in some textboxes with specific dates, I do this on a postback so the textboxes are filled in with the dates. But the SQLDatasource control data binds again and shows new results in my gridview.
Is there any way to prevent this so I can just postback to fill in the textboxes?
I tried binding a ListBox to an Object Data Source, but I can’t get the field to show up in the Data Source Configuration Wizzard for the ListBox. I got it working programatically populating the listbox using the DataReader but I’d like to be able to use the Object Data Source (Unless there are compelling reasons not to that I haven’t heard of yet.)
The code:
[code]....
i am creating a listCollection like this:
[code]....
however my text and value in the drop down, both show the text. When i debug the above code li.Value = row.Item("risCode") shows the Code correctly, but why does it not reflect when i try to bind it to the dropdown list?
I have a DropDownList which binds its SelectedValue to a field from an SqlDataSource. However, I need it to ignore the case when data binding, as if it's not in the correct case I recieve a lot of errors. Is this easily achievable?
View 1 Repliessql data source is easily take one filter expression from dropdown list and filter the data show in gridview.
 How can i filter sql data source through listbox because in list box user can pass multi selected value in that sql data source stop working.
how do I bind a a Listbox to a form?
[Code]....
Action:
[Code]....
evTemplateSelected does not contain any rows, although there should be. But it is not null!
how can i access the my sqldatasource selected datasource for modification and adding for example new datacolumns before binding??where is the best place to perform these modifications ?i guess SqlDataSource1_Selected is the right place, but i don't know how ?
View 1 RepliesI want to create a generic page which contains a gridview and sqldatasource. I want to put these two controls on .aspx (C#) page but bind them at runtime. It should have selectcommand, updatecommand, deletecommand and insertcommand. Stored procedures are created for that. Help is needed to make it. .
View 1 Replieshave an datatable with valuees like this
ListItem ddlItem;
foreach (DataRow dr in dt.Rows)
{
ddlItem = new ListItem(dr["names"].ToString())
lbx.Items.Add(ddlItem);
I am trying to bind data in a column to a listbox. Here is my code:
[Code]....
Here is my sp:
[Code]....
Am I going about this the right way? Nothing is showing up at all..
after I pass querystring parameter to page,page works as expected,but after that when I change my control parameter(dropdownlist selected value how can I set querystring to null or empty...
View 1 Replies I came up with the following error when i tried to run my asp.net application.
The error is : Unable to Attach.The Binding Handle is invalid.Do you wish to continue?
If i click Yes, application is running but could not able to debug.
Then I referred to microsoft blogs and tried the following solution control Panel-->Administrative tools-->Services-->Terminal ServicesI changed startup type to "Manual" ,restarted my machine.But it's not working for me.
came up with the following error when i tried to run my asp.net application.The error is : Unable to Attach.The Binding Handle is invalid.Do you wish to continue?If i click Yes, application is running but could not able to debug.Then I referred to microsoft blogs and tried the following solution control Panel-->Administrative tools-->Services-->Terminal ServicesI changed startup type to "Manual" ,restarted my machine.But it's not working for me.Even i tried by also reinstalling .net2.0, then also it's not working..It will be difficult to go thro' the code if debug fails..
View 1 Repliesthe inline expression syntax to bind the selectedvalue of a listbox to a textbox.text?
View 2 RepliesTwo ddl inside gridview. on selecting first ddl1 fill next ddl2 by passing selected value as parameter by executing the sqldatasource select command in codebehind.code:
GridViewRow gr = (GridViewRow)((DataControlFieldCell)((DropDownList)sender).Parent).Parent; //find the control in that DropDownList d1 = (DropDownList)gr.FindControl(ddl1); DropDownList d2 = (DropDownList)gr.FindControl(ddl2); SqliaDataSource.SelectParameters.Add("@name", d1.SelectedItem.Text.ToString()); dataView dv=(dataview) SqliaDataSource.select(DataSourceSelectArguments .Empty);
Error: There is no source code available for the current location. and Returns null value
I am having 3 ListBoxs(LB1,LB2,LB3).In LB1 I am binding the names of Courses through database.The code is shon below...
da1 = new SqlDataAdapter("SELECT COURSE_ID,COURSE_NAME FROM Course_Mst", con);
DataTable dt1 = new DataTable();
da1.Fill(dt1);
lstCourse.DataSource = dt1;
lstCourse.DataValueField = "COURSE_ID";
lstCourse.DataTextField = "COURSE_NAME";
lstCourse.DataBind();
Whenever I select particular course in LB1 all the content related to that course will be binded in LB2.The code is shown below.....
protected void LB1_SelectedIndexChanged(object sender, EventArgs e)
{
da2 = new SqlDataAdapter("SELECT SPEC_ID,SPEC_NAME FROM SPEC_TRANS WHERE COURSE_ID="+Convert.ToInt32(lstCourse.SelectedValue)+"", con);
DataTable dt = new DataTable();
da2.Fill(dt);
lstSpecilization.DataSource = dt;
lstSpecilization.DataValueField = "SPEC_ID";
lstSpecilization.DataTextField = "SPEC_NAME";
lstSpecilization.DataBind();
lstSpecilization.Focus();
}
I am having a ADD button.In LB2 I can select multiple items.When I select multiple items in LB2 and click on ADD all the selected items will be binded into LB3.The code is shown below...
protected void btnAddCourseDetaisl_Click(object sender, EventArgs e)
{
for (int intLoopIndex = 0; intLoopIndex <lstSpecilization.Items.Count ; intLoopIndex++)
{
if (lstSpecilization.Items[intLoopIndex].Selected)
{
ListItem li = new ListItem(lstSpecilization.Items[intLoopIndex].Text, lstSpecilization.Items[intLoopIndex].Value);
LB3.Items.Add(li);
}
}
}
My problem is when I select a item from LB2 and click on ADD the selecteditem is added to LB3 but if I select the same item and click on ADD the items are again added to the LB3.I want to prevent this.Pls respond me ASAP.
I have a grid which is binding to a objectdatasource and when it is in edit mode, i am displaying a form template and wanted to bind all the values. I have one field called ApprovedCode. In the edit mode, i am displaying all the codes drop down list box and making a bind on the selectedvalue and i dont know how to handle when it is empty. When it is empty i wanted to display "Select..."
I followed this forum post but i am getting error
[URL]
This is my code
[Code]....
This is the error message that i am receiving
"ddlApprCode' has a selectedvalue which is invalid because it does not exist in the list of items
Not point to the break point.it gives above error massege when start debbuging. How i fix this.
View 1 RepliesOnce sqldatasource has been setup, how does one bind web controls to the sqldatasource?
simple example binding 2-3 controls to a sqldatasource.
I am trying to tie a sqlDatasource to a Stored Procedure. The stored procedure looks like...
[Code]........
I am designing a program that will let me enter the name of an item to swap and adds the swap to an array list when a button Add is pressed. Once the item is added to the array list a Sub Procedure should be called which displays the contents of the array list in a list box.
The system will also allow me to remove items from the array list using a Remove button
followed by updating array list.
I have done some part which puts item into the listbox1 which i named lstSwapList.I would need some assistance on the Sub Procedure to display the Value or Description on the other listbox2 which i have also named lstContent,if a value is selected from the listbox1.
I would also want to know how to update the Listbox content,However i hv added a sample of the way i guess it may be.
Any complete solution from anybody on the Sub Procedure and the Update Swap procedure will be greately appreciated.
The script below is what i have done so far.
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub lstContent_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstContent.SelectedIndexChanged
End Sub
Protected Sub lstSwapList_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstSwapList.SelectedIndexChanged
End Sub
Protected Sub btnAddSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAddSwap.Click
Dim SwapValue As String = "Sixty Pounds"
Dim Counter As Integer = 8
Dim SwapN0 As Integer
lstSwapList.Items.Add(SwapValue)
lstSwapList.Items.Add(Counter)
lstSwapList.Items.Add(New ListItem("300", "1"))
lstSwapList.Items.Add(New ListItem("ASP.Net", "2"))
lstSwapList.Items.Add(New ListItem("Programming", "3"))
SwapN0 = lstSwapList.SelectedValue
For Counter = 0 To -1
SwapN0 = lstContent.Items.Count
Next
End Sub
Protected Sub btnDeleteSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDeleteSwap.Click
lstSwapList.Items.Remove(lstSwapList.SelectedValue)
End Sub
Protected Sub btnUpdateSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpdateSwap.Click
End Sub
End Class
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Sub UpdateSwap(ByVal valueA As String, ByVal ValueBAs String, ByVal ValueC As Integer, ByVal ValueD As Date)
