I have a gridview with few controls in it and I'm trying to get these controls in OnRowCommand event by using the FindControl method, but it always returns null.
This is the gridview
<asp:GridView ID="GridView1" runat="server" CssClass="table table-striped table-bordered" AutoGenerateColumns="false" DataKeyNames="ID" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowEditing="GridView1_RowEditing"
OnRowDataBound="GridView1_RowDataBound" OnRowCommand="GridView1_RowCommand" OnRowUpdating="GridView1_RowUpdating">
<Columns>
<asp:TemplateField HeaderText="Service Type">
<ItemTemplate>
<asp:Label Text='<%# Eval("Fund_Service_Type") %>' runat="server" />
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlServiceType" runat="server">
</asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Method">
<ItemTemplate>
<asp:Label Text='<%# Eval("Fund_Method") %>' runat="server" />
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlFundMethod" runat="server">
</asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Source">
<ItemTemplate>
<asp:Label Text='<%# Eval("Fund_Source") %>' runat="server" />
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlFundSource" runat="server">
</asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Amount">
<ItemTemplate>
<asp:Label Text='<%# Eval("Fund_Amount") %>' runat="server" />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtAmount" runat="server" Text='<%# Eval("Fund_Amount")%>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField Visible="true" HeaderText="" ShowHeader="false">
<ItemTemplate>
<asp:LinkButton ID="btnRedirect" runat="server" CommandArgument='<%# Bind("ID") %>' CommandName="CompleteTransaction" Text="Complete Transaction"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
And here is the row command event
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("CompleteTransaction"))
{
GridViewRow gvr = (GridViewRow)(((LinkButton)e.CommandSource).NamingContainer);
int rowIndex = Convert.ToInt32(e.CommandArgument); // Get the current row
DropDownList ddlServiceType = (DropDownList)GridView1.Rows[rowIndex].Cells[0].FindControl("ddlServiceType");//retuns null
GridViewRow selectedRow = GridView1.Rows[rowIndex];
DropDownList name = (DropDownList)gvr.Cells[0].FindControl("ddlServiceType"); //also returns null
Server.Transfer("~/Transaction.aspx");
}
}
what I'm trying to do is get the selected row so and values from its controls, so that I can use them in Transaction page.
Edit: The FindControl method is working fine in RowUpdating and RowDataBound events
Since your DropDownLists is in the EditItemTemplate, you need to use the EditIndex to get the correct row.
DropDownList ddlServiceType = (DropDownList)GridView1.Rows[GridView1.EditIndex].FindControl("ddlServiceType");
ddlServiceType.BackColor = Color.Red;
this may help you out
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("CompleteTransaction"))
{
int rowIndex = Convert.ToInt32(e.CommandArgument); // Get the current row
GridViewRow row = GridView1.Rows[index];
Label lblName = (Label)row.FindControl("lblName")
DropDownList drpList= (DropDownList)row.FindControl("ddlServiceType");
lblName.Text = drpList.SelectedValue;
}
}
Related
I have a gridview with checkboxes to select the row. On checking the checkbox I need to get the row values into a string/session. Below is the code
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
OnRowCancelingEdit="GridView1_RowCancelingEdit"
OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnRowDeleting="GridView1_OnRowDeleting" OnPageIndexChanging="GridView1_PageIndexChanging" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" Width ="1000px" class="grid" AllowPaging="True" PagerSettings-FirstPageText="First" PagerSettings-LastPageText="Last" PageButtonCount="2" PagerSettings-Mode="NumericFirstLast" PageSize="5">
<PagerSettings Mode="NumericFirstLast" PageButtonCount="2" FirstPageText="First" LastPageText="Last"/>
<Columns>
<asp:TemplateField HeaderText="Id">
<ItemTemplate>
<asp:CheckBox ID="CheckBox3" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Connection">
<ItemTemplate>
<asp:Label ID="lbl_conn" runat="server" Text='<%#Eval("Connection") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="UserID">
<ItemTemplate>
<asp:Label ID="lbl_Usrid" runat="server" Text='<%#Eval("UserID") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_Usrid" runat="server" Text='<%#Eval("UserID") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Password">
<ItemTemplate>
<asp:Label ID="lbl_pwd" runat="server" Text='<%#Eval("Password") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_pwd" runat="server" Text='<%#Eval("Password") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Connection Name">
<ItemTemplate>
<asp:Label ID="lbl_conName" runat="server" Text='<%#Eval("Connection_Name") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_conName" runat="server" Text='<%#Eval("Connection_Name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:Button ID="btn_Edit" runat="server" Text=" Edit" class=" btnEdit" CommandName="Edit" />
</ItemTemplate>
<EditItemTemplate>
<asp:Button ID="btn_Update" runat="server" class=" btnEdit" Text="Update" CommandName="Update"/>
<asp:Button ID="btn_Cancel" runat="server" class=" btnEdit" Text="Cancel" CommandName="Cancel"/>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:Button ID="btn_Delete" runat="server" class=" btnDelete" Text="Delete" CommandName="Delete" OnClientClick="return confirm('Are you sure you want to delete this event?')" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
There is a button below the grid. on click of the button I need to get the values.
protected void LinkButton1_Click(object sender, EventArgs e)
{
foreach (GridViewRow item in GdvTestData.Rows)
{
CheckBox chk = (item.FindControl("CheckBox3") as CheckBox);
if (chk.Checked)
{
string conn = item.Cells[1].Text;
}
}
}
But am getting null value for string conn = item.Cells[1].Text;
where am I going wrong
Grid contains the different row type like header row , data row and footer row. You need to get content from the data row only then please check the row type first if it is a data row then try to get cell values. GridViewRow.RowType Property
foreach(GridViewRow item in GdvTestData.Rows) {
// check row is datarow
if (item.RowType == DataControlRowType.DataRow) {
CheckBox chk = (item.FindControl("CheckBox3") as CheckBox);
if (chk.Checked)
{
Label MyLabel = (Label)item.FindControl("lbl_conn");
string conn = MyLabel.Text;
}
}
}
I am trying to select a row from a gridview by using a select button link but when I click on the button, it doesn't call that C# method. So, I am wondering what could I be doing wrong. Please help me out. Thanks
form.aspx-
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
OnRowEditing="OnRowEditing" OnRowCancelingEdit="OnRowCancelingEdit"
OnRowUpdating="OnRowUpdating" OnRowDeleting="OnRowDeleting" EmptyDataText="No records has been added." Height="72px" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" Width="723px">
<Columns>
<asp:TemplateField HeaderText="Title" ItemStyle-Width="150">
<ItemTemplate>
<asp:Label ID="lbltitle" runat="server" Text='<%# Eval("Title") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txttitle" runat="server" Text='<%# Eval("Title") %>'></asp:TextBox>
</EditItemTemplate>
<ItemStyle Width="150px"></ItemStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="Subtitle" ItemStyle-Width="150">
<ItemTemplate>
<asp:Label ID="lblsubtitle" runat="server" Text='<%# Eval("Subtitle") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtsubtitle" runat="server" Text='<%# Eval("Subtitle") %>'></asp:TextBox>
</EditItemTemplate>
<ItemStyle Width="150px"></ItemStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="Content" ItemStyle-Width="150">
<ItemTemplate>
<asp:Label ID="lblContent" runat="server" Text='<%# Eval("Content") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtContent" runat="server" Text='<%# Eval("Content") %>'></asp:TextBox>
</EditItemTemplate>
<ItemStyle Width="150px"></ItemStyle>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" Text="SELECT" CommandName="MyCustomCommand" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
NewsFeedDemo.cs
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("MyCustomCommand"))
{
GridViewRow clickedRow = ((LinkButton)e.CommandSource).NamingContainer as GridViewRow;
Label lblID = (Label)clickedRow.FindControl("lblID");
}
}
please use this OnRowCommand="GridView1_RowCommand"
<asp:LinkButton ID="lnkbedit" runat="server" CommandName="MyCustomCommand" CommandArgument='<%#Eval("id") %>'>Edit</asp:LinkButton>
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Edit")
{
}
}
You use the Method GridView1_RowCommand, but it is not bound to GridView1. You need to add OnRowCommand to the GridView.
<asp:GridView ID="GridView1" runat="server" OnRowCommand="GridView1_RowCommand">
I have a gridview with a label and a commandfield for edit.
I want to disable the commandfield if the label contains today's date.
All commandfields of empty labels should be enabled.
How can I achieve that?
Thanks
Aspx -
<asp:GridView ID="gv" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField HeaderText="Schedule Date">
<ItemTemplate>
<asp:Label ID="schedule" runat="server" Text='<%# Eval("Date","{0:dd-MMM-yy}") %>'></asp:Label>
</ItemTemplate>
<asp:CommandField ShowEditButton="true" EditText="Click here to Schedule/Re-Schedule" UpdateText="Submit" HeaderText="Schedule/Re-Schedule" />
</Columns>
</asp:GridView>
its better if you use command field as linkButton:
<asp:GridView ID="gv" runat="server" AutoGenerateColumns="False"
onrowdatabound="gv_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Schedule Date">
<ItemTemplate>
<asp:Label ID="schedule" runat="server" Text='10:25-02-2015'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False"
CommandName="Edit" Text="Edit"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
then you can use row data bound event:
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label schedule = (Label)e.Row.FindControl("schedule");
LinkButton LinkButton1 = (LinkButton)e.Row.FindControl("LinkButton1");
if (schedule.Text == string.Empty)
{
LinkButton1.Enabled = false;
}
else
{
LinkButton1.Enabled = true;
}
}
}
This will help you!
How Do I Transfer Grid view values to next page. Grid view consist one of the text box(txtItemGroup) which values have to be entered by the user dynamically, not from the Data base.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" HorizontalAlign="Center">
<Columns>
<asp:TemplateField HeaderText="Item Name">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("TestItemName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Items Group">
<ItemTemplate>
<asp:Label ID="lblGroup" runat="server" Text='<%# Eval("TestItemGroup") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Group">
<ItemTemplate>
<asp:TextBox ID="txtItemGroup" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item Values">
<ItemTemplate>
<asp:Label ID="lblItemValue" runat="server" Text='<%# Eval("TestItemValues") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Default Values">
<ItemTemplate>
<asp:Label ID="lblDefaultValues" runat="server" Text='<%# Eval("DefaultValues") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
In your GridView's RowCommand event put in the following code:
if (e.CommandName == "Send")
{
TextBox txt = (TextBox)GridView1.FindControls("txtItemGroup");
Session["ItemGroup"] = txt.Text;
}
In addition to this, put a Button or LinkButton in your GridView's ItemTemplate to send the value of the appropriate Textbox as you have put a TextBox and set it's CommandName property in the .aspx page as:
<asp:Button id="btnSend" runat="server" Text = ">" commandName="Send"/>
And then in the Page_Load event of the page where you want the value of TextBox to be viewed:
if (!IsPostback)
{
Label1.Text = Session["ItemGroup"].ToString();
//or
Label1.Text = (String)Session["ItemGroup"];
}
try this:-
Add a button just below that textbox like this:-
<asp:Button ID="btnsend" Text="Send" runat="server" CommandName="Send" />
In RowCommand event write like this:-
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Send")
{
GridViewRow row = (GridViewRow)((Control)e.CommandSource).NamingContainer;
TextBox TextBox1 = row.FindControl("txtItemGroup") as TextBox;
Response.Redirect("yourasppage.aspx?txt=" + TextBox1.Text);
}
}
On page load of `yourasppage.aspx' use this code
string txtval = Request.QueryString["txt"];
Hope this will help
I have a Gridview and inside I have another one nested GridView. When I press a plus button the nested GridView expands using a JavScript. The nested GridView expands on edit mode using TextBox controls. So when the user types on a TextBox would have the ability to update the cell using an update button. My problem is that when I press the update button the update occurs but not how I would expected. If for example the initial value of a cell was “My name is Peter” and I have done the edit “I don’t have a name” The new value that will be saved is exactly this: “My name is Peter, I don’t have a name”. The databind of the nested GridView occurs on the parent GridView DataBound event.
My code:
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" OnPageIndexChanging="gridView_PageIndexChanging"
AutoGenerateColumns="False" DataKeyNames="myitemID"
OnRowDataBound="GridView_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<img alt = "" style="cursor: pointer" src="../plus.png" />
<asp:GridView ID="nestedGridView" runat="server"
AutoGenerateColumns="False"
DataKeyNames="mynestedID">
<Columns>
<asp:TemplateField HeaderText="nestedID" Visible="false" ItemStyle-Width="20%"
SortExpression="nesteditemID">
<ItemTemplate>
<asp:Label ID="nesteditemID" runat="server" Text='<%# Bind("nesteditemID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name" ItemStyle-Width="20%"
SortExpression="Name">
<ItemTemplate>
<asp:TextBox ID="name" TextMode="MultiLine" Width="80%" Rows="3" runat="server" Text='<%# Bind("Name") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:Panel ID="mypanel" runat="server">
<table>
<tr>
<td>
<asp:ImageButton ID="ImageButton2" OnClick="updatename_Click" ImageUrl="~/images/update.jpg" Width="15px" Height="15px" runat="server"></asp:ImageButton>
</td>
</tr>
</table>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="myitemID" InsertVisible="False"
SortExpression="myitemID" Visible="False">
<ItemTemplate>
<asp:Label ID="myitemID" runat="server" Text='<%# Bind("myitemID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ItemName" ItemStyle-Width="20%"
SortExpression="ItemName">
<ItemTemplate>
<asp:Label ID="ItemName" runat="server" Text='<%# Bind("ItemName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
cs code:
protected void updatename_Click(object sender, EventArgs e)
{
GridViewRow masterrow = (GridViewRow)(sender as Control).Parent.Parent.Parent.Parent.Parent.Parent.Parent.Parent;
GridViewRow row = (GridViewRow)(sender as Control).Parent.Parent.Parent;
int index = row.RowIndex;
int mi = masterrow.RowIndex;
int i = index;
GridView nestedGridView = (GridView)GridView1.Rows[mi].FindControl("nestedGridView");
Label nestedID = (Label)nestedGridView.Rows[index].FindControl("nestedID");
int sbid = Convert.ToInt32(nestedID.Text);
TextBox name = (TextBox)nestedGridView.Rows[index].FindControl("name");
string myname = Convert.ToString(name.Text);
//update name with the new value
Nesteditem updatenesteditem = mylinqobjects.Nesteditems.Single(p => p.nesteditemID == sbid);
if (!string.IsNullOrEmpty(myname))
{
updatenesteditem.nesteditemName = myname;
mylinqobjects.SubmitChanges();
}
}
Replaced the current text by removing the old one.
string myname = name.Text.Substring(name.Text.LastIndexOf(",")+1);
Tried all possiblities, but due nested grid view rendering and its restrictions, we could do only like above.
Any others solutions, please provide.