Hi I have a GridView control and in it a TextBox control inside an EditItemTemplate Field.
Now I need to change the textbox text when the user enters the edit mode.
When I run the program the textbox will take the value of the label that was in the ItemTemplate and I cant access the textbox.
.aspx:
<asp:GridView runat="server" ID="GridView1" AutoGenerateColumns="False"
ShowHeader="False" onrowcommand="GridView1_RowCommand"
onrowediting="GridView1_RowEditing" OnRowCancelingEdit="GridView1_Cancel"
onrowupdating="GridView1_RowUpdating" onrowdeleting="GridView1_RowDeleting"
onrowdatabound="GridView1_RowDataBound" DataKeyNames="TweetID">
<Columns>
<asp:TemplateField HeaderText="ProfilePicture">
<ItemTemplate>
<asp:ImageButton ID="ProfileImage" runat="server" CommandName="Redirect"
CommandArgument='<%# Container.DataItemIndex %>' Height="40px" Width="40px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="FullName">
<ItemTemplate>
<asp:label ID="FullNameLabel" runat="server" text='<%#Eval("FullName") %>'></asp:label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="UserName">
<ItemTemplate>
<asp:Label ID="UserNameLabel" runat="server" Text='<%#Eval("UserName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Tweet">
<ItemTemplate>
<%--<asp:Label ID="TweetLabel" runat="server" Text='<%#Eval("TweetText") %>'></asp:Label>--%>
<asp:Label ID="TweetLabel" runat="server" Text=""></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TweetTB" runat="server" Text='<%#Eval("TweetText") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:Image ID="TweetPic" runat="server"
ImageUrl='<%#"~/UploadedImages/"+Eval("PicName") %>' Height="125px" Width="222px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ReTweet">
<ItemTemplate>
<asp:ImageButton ID="ReTweetImgBTN" runat="server"
ImageUrl="~/SrcImage/retweet-action.png" Height="27px" Width="29px"
CommandName="ReTweet" CommandArgument='<%# Container.DataItemIndex %>'/>
<%--<asp:Label ID="ReTweetEd" runat="server" Text="ReTweetEd" Visible="false"></asp:Label>--%>
<%--<asp:Button ID="ReTweetBTN" runat="server" Text="ReTweet" CommandName="ReTweet" CommandArgument='<%# Container.DataItemIndex %>' />--%>
<asp:Label ID="ReTweetStat" runat="server" Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Like">
<ItemTemplate>
<asp:ImageButton ID="LikeImgBTN" runat="server" ImageUrl="~/SrcImage/like-action.png"
Height="27px" Width="29px" CommandName="Like" CommandArgument='<%# Container.DataItemIndex %>'/>
<%--<asp:Button ID="LikeBTN" runat="server" Text="Like" CommandName="Like" CommandArgument='<%# Container.DataItemIndex %>' />--%>
<asp:Label ID="LikeStat" runat="server" Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Options">
<ItemTemplate>
<asp:LinkButton ID="Edit" runat="server" Text="Edit" CommandName="Edit" />
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="Delete" runat="server" Text="Delete" CommandName="Delete" />
<asp:LinkButton ID="btn_Update" runat="server" Text="Update" CommandName="Update"/>
<asp:LinkButton ID="btn_Cancel" runat="server" Text="Cancel" CommandName="Cancel"/>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TweetID" Visible="false">
<ItemTemplate>
<asp:HiddenField ID="TweetID" runat="server" Value='<%#Eval("TweetID") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="UserID" Visible="false">
<ItemTemplate>
<asp:HiddenField ID="UserID" runat="server" Value='<%#Eval("UserID") %>'/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
.cs:
protected void Page_Load(object sender, EventArgs e)
{
Session["UserID"] = 1; // To be removed
if(!IsPostBack)
BindGridview();
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
int userId = int.Parse(Session["UserID"].ToString());
if (e.CommandName == "Like")
{
int index = Convert.ToInt32(e.CommandArgument);
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(GridView1.DataKeys[index].Value.ToString()));
int tweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
LikeHelper.Like(tweetID, userId);
}
else
LikeHelper.Like(int.Parse(GridView1.DataKeys[index].Value.ToString()), userId);
}
if (e.CommandName == "ReTweet")
{
int index = Convert.ToInt32(e.CommandArgument);
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(GridView1.DataKeys[index].Value.ToString()));
int tweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
ReTweetHelper.ReTweet(tweetID, userId);
}
else
ReTweetHelper.ReTweet(int.Parse(GridView1.DataKeys[index].Value.ToString()), userId);
}
if (e.CommandName == "UnReTweet")
{
int index = Convert.ToInt32(e.CommandArgument);
int RetweetID = ReTweetHelper.GetReTweetIdFromReTweetByUserIdAndTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString()), userId);
int TweetID = NewTweetHelper.GetTweetIdFromTweetByReTweetId(RetweetID);
ReTweetHelper.RemoveReTweet(RetweetID);
NewTweetHelper.GeneralRemoveTweet(TweetID);
}
if (e.CommandName == "Redirect")
{
int index = Convert.ToInt32(e.CommandArgument);
int TweetID = int.Parse(GridView1.DataKeys[index].Value.ToString());
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(TweetID))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(TweetID);
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
int UserID = NewTweetHelper.GetUserIdFromTweetByTweetId(RealTweetID);
Response.Redirect("ProfilePage.aspx?UserName=" + UserHelper.GetUserName(UserID));
}
else
Response.Redirect("ProfilePage.aspx?UserName=" + UserHelper.GetUserName(NewTweetHelper.GetUserIdFromTweetByTweetId(TweetID)));
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GridView1.DataBind();
//TextBox TextBox = GridView1.Rows[e.NewEditIndex].FindControl("TweetTB") as TextBox;
//HiddenField TweetID = GridView1.Rows[e.NewEditIndex].FindControl("TweetID") as HiddenField;
//TextBox.Text = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(TweetID.Value.ToString())).TweetText;
}
protected void GridView1_Cancel(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
GridView1.DataBind();
}
public void BindGridview()
{
int userId = int.Parse(Session["UserID"].ToString());
ServiceReference1.WebServiceSoapClient objWs = new ServiceReference1.WebServiceSoapClient();
DataSet ds = objWs.SelectTweets(userId, 0);
DataTable dt = ds.Tables[0];
GridView1.DataSource = dt;
GridView1.DataBind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int userId = int.Parse(Session["UserID"].ToString());
int index = Convert.ToInt32(e.RowIndex);
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString())))
{
int RetweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(GridView1.DataKeys[index].Value.ToString()));
ReTweetHelper.RemoveReTweet(RetweetID);
NewTweetHelper.GeneralRemoveTweet(int.Parse(GridView1.DataKeys[index].Value.ToString()));
}
else
NewTweetHelper.GeneralRemoveTweet(Convert.ToInt32(GridView1.DataKeys[index].Value.ToString()));
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int userId = int.Parse(Session["UserID"].ToString());
if (e.Row.RowType == DataControlRowType.DataRow)
{
HiddenField userIdLbl = (HiddenField)e.Row.FindControl("UserID");
HiddenField tweetid = (HiddenField)e.Row.FindControl("TweetID");
LinkButton editBt = (LinkButton)e.Row.FindControl("Edit");
editBt.Visible = userId == Convert.ToInt32(userIdLbl.Value);
ImageButton ProfileImage = e.Row.FindControl("ProfileImage") as ImageButton;
ProfileImage.ImageUrl = "~/UploadedImages/" + UserHelper.GetImageUrl(int.Parse(userIdLbl.Value.ToString()));
// if retweet
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString())))
{
Tweet tweet = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString()));
string FullName = UserHelper.GetName(tweet.UserID);
// change tweet
Label name = e.Row.FindControl("FullNameLabel") as Label;
Label UserName = e.Row.FindControl("UserNameLabel") as Label;
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(tweetid.Value.ToString()));
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
int RealUserID = NewTweetHelper.GetUserIdFromTweetByTweetId(RealTweetID);
name.Text = "Retweeted by " + FullName + "<br>" + UserHelper.GetName(RealUserID);
UserName.Text = UserHelper.GetUserName(RealUserID);
ProfileImage.ImageUrl = "~/UploadedImages/" + UserHelper.GetImageUrl(RealUserID);
editBt.Visible = false;
}
//if there is image
Image img = (Image)e.Row.FindControl("TweetPic");
img.Visible = img.ImageUrl != "~/UploadedImages/";
//stats
Label LikeStat = e.Row.FindControl("LikeStat") as Label;
Label ReTweetStat = e.Row.FindControl("ReTweetStat") as Label;
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(tweetid.Value.ToString()));
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
LikeStat.Text = LikeHelper.AmountOfLikesByTweetId(RealTweetID).ToString();
if (int.Parse(LikeStat.Text.ToString()) > 0)
LikeStat.Visible = true;
ReTweetStat.Text = ReTweetHelper.AmountOfReTweets(RealTweetID).ToString();
if (int.Parse(ReTweetStat.Text.ToString()) > 0)
ReTweetStat.Visible = true;
}
else
{
LikeStat.Text = LikeHelper.AmountOfLikesByTweetId(int.Parse(tweetid.Value.ToString())).ToString();
if (int.Parse(LikeStat.Text.ToString()) > 0)
LikeStat.Visible = true;
ReTweetStat.Text = ReTweetHelper.AmountOfReTweets(int.Parse(tweetid.Value.ToString())).ToString();
if (int.Parse(ReTweetStat.Text.ToString()) > 0)
ReTweetStat.Visible = true;
}
// retweeted
if (ReTweetHelper.IsReTweetExistByUserIdAndTweetId(userId,int.Parse(tweetid.Value.ToString())))
{
ImageButton Retweet = e.Row.FindControl("ReTweetImgBTN") as ImageButton;
Retweet.ImageUrl = "~/SrcImage/retweet-action-on.png";
Retweet.CommandName = "UnReTweet";
}
if (NewTweetHelper.IsTweetByUser(int.Parse(tweetid.Value.ToString()), userId))
{
ImageButton Retweet = e.Row.FindControl("ReTweetImgBTN") as ImageButton;
Retweet.ImageUrl = "~/SrcImage/retweet-action-inactive.png";
Retweet.CommandName = null;
}
//Like Button
ImageButton LikeImg = e.Row.FindControl("LikeImgBTN") as ImageButton;
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(tweetid.Value.ToString()));
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
if(LikeHelper.IsUserLikeTweet(userId,RealTweetID))
LikeImg.ImageUrl = "~/SrcImage/like-action-on.png";
}
else
{
if (LikeHelper.IsUserLikeTweet(userId,int.Parse(tweetid.Value.ToString())))
LikeImg.ImageUrl = "~/SrcImage/like-action-on.png";
}
//Hyper Link Text
Label TweetLabel = (Label)e.Row.FindControl("TweetLabel");
//TextBox TweetTB = (TextBox)e.Row.FindControl("TweetTB");
Tweet TweetText = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString()));
//TweetTB.Text = "a";// TweetText.TweetText.ToString();
string text = NewTweetHelper.HyperLinkTweet(int.Parse(tweetid.Value.ToString()));
//TweetText.TweetText= text; //need?
TweetLabel.Text = text;
//Change Tb in edit cand do it in RowEditting
//if (e.Row.RowState == DataControlRowState.Edit)
//{
// TextBox TextBox = e.Row.FindControl("TweetTB") as TextBox;
// Tweet Text = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString()));
// TextBox.Text = "abc";
//}
}
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
HiddenField TweetID = GridView1.Rows[e.RowIndex].FindControl("TweetID") as HiddenField;
TextBox TweetText = GridView1.Rows[e.RowIndex].FindControl("TweetTB") as TextBox;
NewTweetHelper.UpdateTweet(int.Parse(TweetID.Value), TweetText.Text);
GridView1.EditIndex = -1;
BindGridview();
}
In the RowEditing event, you can set the EditIndex value and re-bind the data to the GridView:
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
BindGridView();
}
protected void GridView1_Cancel(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
BindGridView();
}
Then, in the RowDataBound event, you can access the controls of the row:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex == GridView1.EditIndex)
{
TextBox txtBox = e.Row.FindControl("TweetTB") as TextBox;
...
}
else
{
...
}
}